Tag Torque converter

What diesel engine is best for a 1986 Ford F150 4×4 swap?


Bullnose Bill explaining diesel swaps for 1986 F150 trucks.

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Bill says:

Ah, the classic diesel swap in an ’86 F-150! That’s a fantastic project that can bring some serious torque and fuel efficiency to your Bullnose.

For diesel swaps, you have a few popular options. Here are a couple of the most common engines people use:

  1. Ford 7.3L Power Stroke: This is a favorite choice among many enthusiasts. It’s a durable engine with a good reputation for reliability and performance. You’ll need to consider the engine mounts, transmission compatibility, and possibly a custom exhaust.

  2. Cummins 5.9L: Another popular option, especially if you’re looking for a strong aftermarket support and parts availability. The 5.9L can also deliver impressive torque and can be found in various configurations.

  3. Ford 6.7L Power Stroke: If you want to go more modern, some folks have successfully swapped in the newer 6.7L. However, this swap can be more complicated due to the electronics involved.

Just keep in mind that a diesel swap usually requires some modifications. You might need to adjust the front suspension, upgrade your transmission to handle the torque, and make sure you have a fuel system that can accommodate diesel fuel.

I’d recommend looking into some resources on the Bullnose Ford subreddit or checking out relevant videos on the Bullnose Garage YouTube channel. They might have specific tips or tricks that can help you with the swap!

Remember, it’s a big project, but the rewards of that diesel power will be worth it. Happy wrenching! If you have more specific questions about the process, feel free to ask!


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What is the simplest diesel engine to install in a 1986 F150 4×4?

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Bill:

If you’re looking for the easiest diesel motor swap for your ’86 F-150 4×4, the Ford 7.3L IDI (Indirect Injection) is often considered the most straightforward option. Here’s why:

  1. Ford Compatibility: Since it’s a Ford engine, you’ll have a better time with the fitment, especially concerning engine mounts and transmission compatibility.

  2. Simplicity: The IDI is generally simpler to wire up compared to modern diesel engines. That means fewer headaches when it comes to integrating electronics.

  3. Availability of Parts: Parts for the 7.3L IDI are fairly abundant, and there are plenty of resources and forums to help you with any issues you might encounter during the swap.

  4. Torque Characteristics: It provides ample torque for a truck setup, making it suitable for towing and off-road performance.

However, if you’re considering a more modern approach, just keep in mind that engines like the Cummins 5.9L can also be relatively straightforward, but they might require more custom work and parts sourcing.

Whichever engine you choose, it’s important to plan ahead. You might want to check out the Bullnose Garage YouTube channel for some swap stories and tips. Also, the Bullnose Ford subreddit is a great place to connect with others who have done similar swaps.

Happy swapping! If you have any more questions, let me know!

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What is the top speed of a 1986 F150 short bed 4×4 with a Cummins 4BT?

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Bill:

Swapping a Cummins 4BT into your ’86 F-150 4×4 can be a thrilling project! The speed you can achieve with this setup will depend on several factors, like the specific gearing of your transmission and differential, tire size, and overall weight of the truck.

Generally speaking, a Cummins 4BT can produce around 105 to 130 horsepower, and with its impressive torque (around 265 lb-ft), you may find your F-150 feels pretty lively, especially for a truck!

  1. Top Speed: Realistically, you might see top speeds in the range of 80 to 90 mph, depending on those aforementioned factors. However, keep in mind that the 4BT is more about torque than speed, so you may not get rocket-like acceleration but solid pulling power, especially when towing or climbing.

  2. Gearing: If you have the stock gearing, it might limit your top speed a bit. However, many enthusiasts choose to regear their differentials to find a better balance between torque and speed, especially if they’re using larger tires.

  3. Transmission: The transmission you pair with the 4BT will also play a significant role. A manual transmission like a Getrag 5-speed can work well, but an automatic could give you a smoother ride.

  4. Weight Factors: Keep in mind that the overall weight of your truck will affect performance. If you’ve done any modifications or removed components, that could change things a bit.

Ultimately, it’s a great setup for someone looking for a rugged, capable truck! Just make sure to take it to a safe area to test out those speeds after your swap. Enjoy the journey, and if you have more questions, feel free to ask!

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What is the 0-60 mph time for a 1986 F150 with a diesel swap?

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Bill:

When it comes to 0-60 times for an ’86 F-150 4×4 equipped with a Cummins 4BT, you can expect it to be around the 8 to 12-second range depending on several factors like weight, gearing, and any additional modifications.

Here’s a bit more detail on what influences that time:

  1. Torque and Power: The Cummins 4BT’s torque is significant, which can help with initial acceleration. However, with around 105-130 horsepower, it may not have the same zip as a gasoline engine.

  2. Weight: The weight of your truck plays a big role in acceleration. A heavier truck will take longer to reach 60 mph, especially off the line. If you’ve stripped down some unnecessary weight, you could see better acceleration.

  3. Transmission: The type of transmission can also impact your 0-60 time. A well-tuned manual or a responsive automatic can make a difference in how quickly you can shift and get moving.

  4. Tires and Traction: Make sure you have tires that provide good traction, especially since you’re in a 4×4. If you’re spinning your tires, your 0-60 time will certainly suffer!

Overall, while the 4BT is great for torque and efficiency, it’s not designed for quick acceleration like a high-performance gasoline engine. However, the power it provides makes it very capable for everyday driving tasks and towing. If you have more questions or need specific advice for your build, just let me know!

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How does a 1986 F150 with 31×10 tires, 5.13 gear ratio, and 150hp perform?

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Bill:

With those specifics—31×10 tires, a 5.13 gear ratio, and approximately 150 horsepower from your Cummins 4BT swap—you could reasonably expect your ’86 F-150 4×4 to achieve a 0-60 mph time in the range of 8 to 10 seconds.

Here’s a breakdown of why:

  1. Tire Size (31×10): These tires are a good balance for off-road capability and on-road performance. They should provide decent traction without bogging down your acceleration too much.

  2. Gear Ratio (5.13): A 5.13 gear ratio is excellent for torque, which is what the 4BT excels at. This higher ratio means you can get off the line with more power, improving your 0-60 time compared to lower ratios, especially when towing or climbing.

  3. Power Output (150 hp): With 150 horsepower, your truck has a decent amount of power for a diesel engine, especially with the torque characteristics of the 4BT. It won’t be a sports car, but that power will help you get moving more quickly.

  4. Weight and Overall Condition: The overall weight of your truck and how well it’s tuned and maintained can also affect your acceleration. If you’ve managed to keep the weight down and ensure everything is running smoothly, you’ll see better performance.

Remember, these numbers are estimates based on typical setups, and actual performance can vary based on numerous factors, including vehicle condition, driver skill, and road conditions. It’s important to keep safety in mind when testing your truck’s limits!

If you have any more questions or need further assistance, feel free to ask!

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What performance can I expect from a 1986 F150 with 170hp tuned?

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Bill:

With a tuned Cummins 4BT producing around 170 horsepower, 31×10 tires, and a 5.13 gear ratio, your ’86 F-150 4×4’s 0-60 mph time could drop to around 7 to 9 seconds. Here’s what makes the difference:

  1. Increased Power: Boosting your power to 170 hp gives you a noticeable increase in acceleration. More horsepower means your truck can reach higher speeds more quickly, improving that 0-60 time.

  2. Torque Management: The 4BT’s high torque output will still play a significant role, helping you launch more effectively off the line. Diesel engines are known for their low-end torque, which means you can get up to speed without needing to rev high.

  3. Gear Ratio Advantage: Your 5.13 gear ratio helps maximize that torque, making it easier to accelerate quickly. This ratio is excellent for both off-road capability and improving on-road acceleration.

  4. Tires and Weight: If you maintain the same weight and tire setup, the improved horsepower should make a noticeable difference in your 0-60 performance.

Keep in mind that these are still estimates and can vary based on many factors like vehicle weight, driver skill, and road conditions. Additionally, ensure that your truck is well-maintained and tuned properly to get the best performance out of your setup.

If you have any more questions or need tips for optimizing your truck further, feel free to ask! Happy tuning!

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How does a torque converter affect a 1986 F150 diesel swap?

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Bill:

Adding a torque converter to your ’86 F-150 4×4 with a Cummins 4BT tuned to 170 horsepower can significantly enhance your acceleration, especially from a stop. With the right torque converter setup, you could potentially see your 0-60 mph time drop to around 6 to 8 seconds. Here’s how:

  1. Improved Launch: A torque converter allows for a smoother and more effective power transfer from the engine to the transmission. This means when you accelerate, you’ll get better launch power, which is crucial for quick 0-60 times.

  2. Higher Stall Speed: If you choose a torque converter with a higher stall speed, it allows the engine to rev higher before fully engaging, which can be advantageous for a few seconds of quicker acceleration. This can be particularly useful with the 4BT’s torque characteristics.

  3. Optimized Power Band: A well-matched torque converter will keep your engine in its ideal power band during acceleration, making better use of the horsepower and torque available.

  4. Weight and Traction: As always, the truck’s weight and traction will still matter, but you should find that with the additional torque converter and your tuning, you have a very capable setup.

Keep in mind that while a torque converter can improve performance, it’s essential to have the right one for your application. Make sure it’s compatible with your transmission and that it’s tuned correctly to take full advantage of your engine’s power.

If you have any more questions or need help selecting a torque converter, just let me know! Happy wrenching!

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What performance can I expect from a 1986 F150 with 200hp?

Bill avatar
Bill:

With your Cummins 4BT tuned to 200 horsepower, 31×10 tires, a 5.13 gear ratio, and paired with a torque converter, you could realistically expect your ’86 F-150 4×4 to achieve a 0-60 mph time in the range of 5.5 to 7 seconds. Here’s what this setup brings to the table:

  1. Power Increase: The jump to 200 horsepower gives you an even sharper acceleration. With that extra power, you’ll have more acceleration potential, allowing you to reach 60 mph more quickly.

  2. Torque Converter Advantage: A good torque converter will further enhance your acceleration from a standstill, making it easier to unleash that power effectively. This is especially important for diesel engines like the 4BT, which provide strong low-end torque.

  3. Optimal Gearing: Your 5.13 gear ratio complements the increased horsepower by allowing for quicker acceleration. This higher ratio is perfect for maximizing torque while keeping engine RPMs in a favorable range during acceleration.

  4. Overall Efficiency: With everything working together—more power, effective torque management, and good gearing—you’ll find that your truck is not only quicker off the line but also more responsive overall.

As always, real-world performance can vary based on factors like truck weight, tire condition, and environmental conditions. But with this setup, you’re looking at a very spirited performance from your Bullnose!

If you have more questions or want to dive deeper into specific parts for your project, just give me a shout! Enjoy the ride!

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What performance can I expect from a 1986 F150 with 300hp?

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Bill:

Reaching 300 horsepower with your Cummins 4BT in an ’86 F-150 4×4 is quite an achievement! With that kind of power, 31×10 tires, a 5.13 gear ratio, and a good torque converter, you could potentially see 0-60 mph times dropping to around 4.5 to 6 seconds. Here’s what to consider:

  1. Serious Power Boost: Hitting 300 hp means you’ve significantly improved the performance capabilities of your engine. This power level allows for aggressive acceleration and a much more thrilling driving experience.

  2. Torque Converter Optimization: A well-matched torque converter becomes even more critical at this power level. It needs to efficiently handle the increased torque and ensure that all that power is put to the ground effectively.

  3. Gearing Considerations: The 5.13 gear ratio will help maximize your launch and acceleration, but you might also consider adjusting your gearing if you plan to push the engine harder. It’s all about finding the right balance for your driving style and needs.

  4. Weight and Traction: With great power comes the responsibility of managing it. Make sure your truck has the right traction and weight distribution to handle the extra horsepower. Depending on the setup, you may need to look into upgrades for suspension, brakes, and tires to keep everything safe and effective.

  5. Cooling and Fuel Delivery: At this power level, ensuring that your cooling system and fuel delivery are up to par is vital. Look into beefing up your radiator, intercooler, and fuel system to support sustained performance.

With all of these factors, you’ll be able to enjoy a very exciting ride in your Bullnose! Just remember that more power often means more responsibility in terms of maintenance and the need for additional upgrades to keep everything running smoothly.

If you have more questions or want specific recommendations for parts or tuning, I’m here to help! Happy driving!

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What are the specs for a 1986 F150 4×4 with a Cummins tuned 4BT at 350hp, torque converter, 5.13 gear ratio, and 31×10.5 tires?

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Bill:

Wow, with a tuned Cummins 4BT at 350 horsepower in your ’86 F-150 4×4, paired with a turbocharger, a torque converter, a 5.13 gear ratio, and 31×10.5 tires, you’re looking at an incredibly powerful setup! With all those specs, you could potentially achieve 0-60 mph times in the range of 4 to 5 seconds. Let’s break it down:

  1. High Horsepower: 350 hp is pretty impressive for a 4BT, especially in a classic truck! This level of power will provide you with exhilarating acceleration and will make your Bullnose feel modern in terms of performance.

  2. Turbocharged Boost: The turbocharger enhances airflow to the engine, allowing for better combustion and more power. This is a fantastic addition to your setup, as it leverages the engine’s efficiency and boosts performance significantly.

  3. Effective Torque Converter: A well-chosen torque converter will help maximize acceleration by optimizing power transfer from the engine to the transmission. It’ll make a significant difference in how quickly you launch from a stop.

  4. Gearing: The 5.13 gear ratio is perfect for balancing power and torque. It allows for quick acceleration while still providing decent torque for off-road situations.

  5. Tire Size: The 31×10.5 tires will give you a good balance between on-road grip and off-road capability. Make sure they’re in good condition for optimal performance.

  6. Weight Management and Suspension: At this power level, you’ll want to ensure your truck’s suspension and brakes are up to the task. Upgrades may be necessary to handle the added power and maintain control, especially during hard acceleration.

  7. Cooling Systems: With great power output, monitoring your cooling system is crucial. Ensure your radiator, intercooler, and other cooling components are adequate to prevent overheating during spirited driving.

With all of these aspects working together, you’ve got a fantastic recipe for an exhilarating driving experience in your Bullnose! Just remember, with great power comes great responsibility—maintaining your truck and ensuring everything is in top shape will be key to enjoying your build.

If you have more questions, need tips on specific parts, or want to share your progress, I’m here for it! Happy driving!

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What transmission is suitable for a 1986 F150 4×4 with a Cummins tuned 4BT at 400hp, torque converter, 5.13 gear ratio, and 31×10.5 tires?

Bill avatar
Bill:

For your ’86 F-150 4×4 with a tuned Cummins 4BT pushing 400 horsepower, you’ll need a strong and reliable transmission to handle that kind of power and torque. Here are a couple of options that would work well for your setup:

1. ZF 5-Speed Manual Transmission

  • Strength: The ZF 5-speed is known for its durability and ability to handle high torque. It’s a solid choice for a Cummins swap and can handle the demands of a turbocharged 4BT.
  • Gear Ratios: It provides a good spread of gears, which can help maximize both off-road capability and on-road performance.

2. NV4500 5-Speed Manual Transmission

  • Popular Choice: The NV4500 is often favored for high-torque applications and is a common choice for those swapping a Cummins engine into older trucks.
  • Robustness: It’s built to handle substantial power and torque while providing smooth shifts and good performance.
  • Overdrive: The NV4500 has a 5th gear overdrive, which can help you with highway cruising efficiency.

3. E4OD Automatic Transmission

  • For Automatic Preference: If you prefer an automatic, the E4OD (or the later 4R100) is a suitable option. It’s designed to handle more power and torque than the older C6 but may require some upgrades to handle the 400 hp reliably.
  • Transmission Controller: If you go this route, consider using a transmission controller to ensure optimal shifting and performance, especially with a high-output engine.

4. Allison 1000 Transmission

  • Heavy-Duty Option: For an even more heavy-duty option, you could go with an Allison 1000. This transmission is capable of handling high horsepower and torque levels well beyond your setup, offering exceptional durability.

Considerations:

  • Transmission Mounting: Make sure you have the right adapter plates and mounting solutions for whichever transmission you choose.
  • Driveshaft Compatibility: Ensure that your driveshafts are compatible with your selected transmission.
  • Cooling: With high horsepower setups, adding an auxiliary transmission cooler can help maintain longevity and performance.

Ultimately, the choice depends on whether you prefer manual or automatic transmission and your specific driving style. If you have any more questions or need further advice on installation and compatibility, feel free to reach out! Happy building!

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What are the specs for a 1986 F150 4×4 with a Cummins tuned 4BT at 400hp, E4OD automatic transmission, and transmission controller?

Bill avatar
Bill:

Great choice! Pairing your tuned Cummins 4BT at 400 horsepower with an E4OD automatic transmission and a transmission controller in your ’86 F-150 4×4 is a solid setup that should provide a good blend of power, control, and ease of driving. Here’s what to consider to make this combination work effectively:

Benefits of the E4OD with a Transmission Controller

  1. Smooth Shifting: The E4OD is designed for a smooth and responsive driving experience. Coupled with a transmission controller, you can fine-tune the shifting characteristics to suit your driving style, whether you prioritize performance or comfort.

  2. Handling Power: While the E4OD isn’t the strongest automatic available, it can handle moderate horsepower and torque with proper upgrades. Ensure that the internal components are well-maintained and consider beefing up the transmission with additional clutches and bands if you plan on pushing its limits.

  3. Overdrive Gear: The E4OD offers an overdrive gear, which is a big plus for highway driving. It’ll help lower your RPMs, providing better fuel efficiency and reduced wear on the engine during long trips.

Key Considerations

  1. Transmission Controller: A good transmission controller is essential for managing shifts effectively, especially with a high-horsepower setup. Look for options that allow for programmable shift points, line pressure adjustments, and possibly a manual mode for more control.

  2. Cooling System: Given the power you’re pushing, upgrading the cooling system is vital. Consider installing an auxiliary transmission cooler to keep the E4OD running at optimal temperatures, especially during heavy towing or off-road conditions.

  3. Driveshaft Compatibility: Make sure your driveshaft is compatible with the E4OD. Depending on your setup, you might need to modify or replace the driveshafts to prevent vibrations or potential failure.

  4. Shift Kit: Installing a shift kit can enhance the performance of the E4OD by improving shift firmness and speed, which is beneficial for a high-powered application.

  5. Mounting and Adapters: Ensure you have the proper mounting hardware and adapter plates to mate the E4OD to your Cummins engine. This step is crucial for a seamless installation.

  6. Tuning: Don’t forget that the tuning of the transmission controller should complement the tuning of your engine. This will help maximize performance and ensure compatibility.

With these considerations in mind, your setup should provide an exhilarating driving experience while maintaining reliability. If you have more questions about specific parts or installation tips, feel free to ask! Happy wrenching!

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What is the 0-60 mph time for a diesel swapped 1986 F150?

Bill avatar
Bill:

With your ’86 F-150 4×4, featuring a tuned Cummins 4BT at 400 horsepower, an E4OD automatic transmission, a torque converter, 5.13 gear ratio, and 31×10.5 tires, you could realistically expect to achieve 0-60 mph times in the range of 4 to 6 seconds. Here’s why:

Factors Influencing Acceleration:

  1. Power-to-Weight Ratio: Your truck’s weight combined with the 400 hp will give you a solid power-to-weight ratio, aiding in acceleration. Since classic trucks like the Bullnose tend to be lighter than modern pickups, you’re at an advantage.

  2. Torque Converter: A matching torque converter will help maximize the power transfer from the engine to the transmission, allowing for quicker launches from a stop.

  3. Gear Ratio: The 5.13 gear ratio is optimized for acceleration, giving you the torque you need to get off the line quickly. This ratio is especially helpful for off-road and performance applications.

  4. Tires: The 31×10.5 tires provide a good balance of traction and rolling resistance. Ensuring they’re in good condition can make a difference in your launch and overall grip.

Real-World Variability:

Keep in mind that real-world performance can vary based on several factors such as:

  • Truck weight (additional modifications or cargo)
  • Tire condition and pressure
  • Environmental conditions (temperature, elevation, etc.)
  • Driver skill and launch technique

If you’re looking to optimize your 0-60 times even further, consider tuning options, weight reduction strategies, or experimenting with launch techniques. But with your setup, you’re already in for a thrilling ride! If you have more questions or want to discuss performance tuning, just let me know! Happy driving!



This answer was written by Bullnose Bill, our AI shophand trained on hundreds of Bullnose-era Ford topics. He knows his way around old Ford Trucks.

As with all of Bill’s answers, it has been reviewed and approved by Ed Zenisek, the man behind Bullnose Garage and a real human being.

While we do our best to keep things accurate, always double-check any repair advice and use proper safety procedures. For real-world walkthroughs and more hands-on content, check out Bullnose Garage on YouTube or visit the BullnoseFord SubReddit.


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E4OD Transmission

Published on December 23, 2024

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Part of the Bullnose Era Transmissions series.

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This is the Ford E4OD transmission, born at the Sharonville transmission plant in Ohio. This powerhouse was designed to haul the C6’s legendary toughness into the modern age. E4OD wasn’t just a warmed-over version of old ideas; it was Ford’s answer to a new world where trucks had to tow campers, tall boats, climb mountains, and still cruise highways without bleeding your wallet dry at every pump.

Howdy folks, Ed here. Welcome back to Bullnose Garage, and today we’re talking about the E4OD transmission. True to its name, electronic four-speed overdrive, this mechanical marvel packed overdrive, electronic controls, and a chance at better fuel economy in Ford’s toughest trucks and SUVs, all while keeping the heavy-duty muscle Ford fans expected from the C6. But what’s really going on inside this hulking aluminum-clad marvel? What’s made it a hero for truck fans, a headache for mechanics, and a talking point at swap meets for over 30 years? Stick around as we unpack its history, tackle its quirks, and figure out why the E4OD still pulls its weight, and maybe, just maybe, why it deserves a spot under your truck. That is, if it’s not already there.

Hello! The E4OD hit the scene in 1989, just as the automotive world was shifting gears. Trucks weren’t just workhorses anymore; they were daily drivers, highway cruisers, and everything in between. Ford needed a transmission that could deliver both towing power and monitor efficiency, and this E4 was their answer. Built on the foundation of the C6, Ford’s legendary three-speed automatic, it came with some major upgrades by keeping the C6’s rugged planetary gear set and beaky design, but adding an overdrive fourth gear, a lockup torque converter, and electronic controls. The E4OD bridged the gap between the C6’s old-school toughness and the modern features demanded by a new generation of Ford truck owners.

Let’s talk about the specs. The E4 features four forward gears and reverse gear ratios are 2.71 to 1 in first, 1.54 to 1 in second, 1 to 1 in third, and 0.71 to 1 in fourth for highway-friendly overdrive. Reverse comes in at 2.18 to 1. It is a big heavy-duty unit, tipping the scales at approximately 230 lbs dry. It holds between 17 and 18 quarts of transmission fluid completely dry, with Mercon automatic transmission fluid recommended. But there’s an important caveat regarding Mercon fluid, which I’ll get to in a bit. Stay tuned for that.

The case is made from aluminum to cut weight while staying durable. Early models came with cast iron tail shaft housings, but most later versions switched to aluminum to shave off even more weight. The lockup torque converter is a standout feature built to boost efficiency by cutting slippage at cruising speeds. Unlike traditional torque converters that rely entirely on fluid, the E4’s lockup converter uses a clutch to form a direct mechanical link between the engine and the transmission. This touchdown on heat boosts fuel economy and makes the E4 a dependable performer for towing and highway cruising. While it wasn’t the first lockup design in the industry, its use in the E4OD was key to keeping durability front and center, making it a trusted choice for both commercial and personal trucks.

For 1989, the E4’s electronic controls brought a new level of sophistication to Ford’s heavy-duty lineup. A transmission control module, or TCM, monitored inputs like throttle position, vehicle speed, and engine load to manage shift points, line pressure, and torque converter lockup. This level of adaptability made the E4OD more responsive and efficient, no matter the conditions. Keeping pace with the industry’s move toward electronic transmission control, the E4OD was installed in a wide range of vehicles from 1989 to 1998. It was a staple in F-series trucks, including the F-150, F-250, and F-350, as well as Broncos and E-series vans. It was paired with a wide range of engines, from the dependable 300 inline 6 to the burly 460 big block and International Harvester’s II diesels. To accommodate these engines, Ford produced the E4 with distinct bell housing patterns: small block, big block, and diesel.

This one here is a small block. The small block version works with engines like the 302, 351 Windsor, and the 360. The big block version is for the 460, while the diesel version is designed for engines like the 6.9 L and the 7.3 L IDI. While the big block and diesel bell housings might look similar, they have different bolt patterns and aren’t directly interchangeable. Modifying one to fit another engine isn’t a simple task; it requires significant machining and custom adaptive plates. Unless you’re a seasoned fabricator with the right tools, it’s best just to use the correct bell housing for your engine to ensure proper alignment and operation.

While the E4 was primarily used in Ford’s consumer trucks and vans, its robust design made it suitable for specialized commercial and industrial applications too. You’ll find it in vehicles like ambulances, motor homes, and shuttle buses built on Ford’s E-series and F-series chassis. Its heavy-duty capabilities made it a popular choice for upfitted vehicles that required reliable performance under demanding conditions.

Now let’s talk about what this transmission does well and where it sometimes struggles. When it comes to strengths, it stands out for its durability and towing capacity. Built on the bones of the C6, it can handle a serious amount of torque. The overdrive gear and lockup torque converter also made it a huge forward in fuel efficiency, especially for highway driving. Its Achilles’ heel? Overheating. That’s why adding an auxiliary transmission cooler isn’t just a good idea; it’s a must if you plan to tow or haul. Another issue is solenoid pack failures. The good news? They’re fixable. The bad news? Diagnosing that problem can be tricky without the right tools. And then there’s the oil pan. Surprise, surprise! E4 doesn’t even have a drain plug. That means changing the fluid requires dropping the whole pan, which is messy and time-consuming unless you know a handy trick, which I’ll share in a bit.

One of the E4OD’s greatest perks wasn’t even part of the original plan. It’s highly compatible with parts from its successor, the 4R100, introduced in 1998. The 4R100 refined and expanded on the E4’s foundation, and many of its components can be retrofitted into an E4OD to boost performance and durability. Builders often swap in 4R100 clutches, prized for their strength and ability to handle higher torque loads. Solenoid packs and valve bodies from the 4R100 are also popular upgrades, offering more reliable shifting and better line pressure control. While these retrofits aren’t rocket science for a skilled builder, they do demand close attention to compatibility and sometimes even reprogramming the TCM to handle the upgrades.

If gutting a 4R100 is your style, the 4 boasts a full aftermarket ecosystem. Popular upgrades include high-performance valve bodies for firmer, more precise shifts and upgraded clutches known to handle extreme horsepower and torque. Torque converters are another key upgrade; aftermarket models offer higher stall speeds for performance builds or heavy-duty designs for towing and off-road use. To keep things cool, many builders offer deep transmission pans that boost fluid capacity and come with built-in cooling fins. Plus, they typically come with a pre-installed drain plug, a major win for your maintenance.

Advanced controllers like the US Shift, formerly Valman Opti Shift, let you fine-tune shift points, line pressure, and torque converter lockup, giving you total control over your transmission’s behavior. When it comes to maintenance, the E4’s lack of a drain plug on the oil pan, like I mentioned before, can be a real headache. Dropping the pan to change the fluid is messy and time-consuming. However, there is a method to make the process cleaner. You can disconnect the return line from the transmission cooler and direct it into a container. Start the engine briefly, and the transmission’s internal pump will push the fluid out through the line. But here’s the catch: you need to shut the engine off before the fluid flow stops completely to avoid running the pump dry, which can cause serious damage. Refill the pan and repeat until the fluid coming out looks clean. While this method helps refresh much of the fluid, it doesn’t replace all the old fluid in the system. For a complete flush, it’s best to have it done professionally, and for long-term convenience, adding a drain plug to the bottom of the pan is a worthwhile upgrade.

The E4 was originally designed to use Mercon automatic transmission fluid. However, it’s crucial to note that starting in the late 1990s, Ford introduced Mercon 5, a synthetic blend with different friction characteristics. But here’s the catch: Mercon 5 is not backward compatible. Hold up, hold up, wait a minute, wait just a second. I got to explain something. You’ll be back in just a second.

Now, about the whole Mercon versus Mercon 5 debacle, it’s a bit of a soap opera in the transmission world. Back when Ford introduced Mercon 5 in ’97, they explicitly told everyone, do not use this in transmissions that require Mercon. That included our trusty E4OD. Using Mercon 5 back then could mess up your transmission shifting and cause all sorts of headaches because the friction characteristics were different. So the avoid Mercon 5 like the plague mantra started, and for good reason. Fast forward to 2006, and Ford throws us a curveball. They decide to discontinue Mercon and announce that Mercon 5 is now the recommended fluid for all applications that previously used Mercon, including the E4OD. No big reformulation announcement, no flashy new label, not even a new name, just a quiet technical service bulletin saying, hey, Mercon 5 is fine now.

You can imagine the confusion this caused. Enthusiasts, mechanics, and builders were left scratching their heads, wondering if they should trust the new guidance or stick with what they knew. So here is the straight talk: according to Ford, you can use Mercon 5 in your E4OD. But I get it; old habits die hard, and myths stick around. If you’re picking up an E4OD from a junkyard or you’re unsure of its history and you want to play it safe, using a fluid that meets the original Mercon specification won’t hurt. Products like Valvoline Dex/Merc automatic transmission fluid are designed to be compatible with transmissions that require Mercon. Just look for fluids that state they’re suitable for Mercon applications. Using a quality fluid like this ensures you’re keeping the E4OD running smoothly without venturing into Mercon 5 territory. If you’re uncomfortable with it, always remember using the correct fluid is key to your transmission’s health, so taking this extra step ensures you’re doing right by your rig. But if you want to follow Ford’s updated guidance, Mercon 5 is officially approved.

Rebuilding the E4OD is more challenging than working on old automatics like the C6 or C4. The electronics add complexity, and getting the end play just right is absolutely critical. This requires precise tools like a dial indicator because even minor errors can lead to premature wear or failure. A professional rebuild can cost anywhere from $2,000 to $4,000, depending on parts and labor. For builders tackling this job themselves, patience and access to the right tools are key.

Now let’s talk about why someone might choose the E4 for a build or why they might pass on it. The E4OD is a powerhouse of a transmission. It’s built to handle high torque loads, making it a top contender for builds that demand durability. If you’re building something like a towing rig, a heavy-duty hauler, or even an off-road rig, the E4OD can take the abuse. Its electronically controlled overdrive gear adds versatility, sparing you the agony of screaming down the highway in low gear. And with its strong aftermarket support, you can upgrade the internals, add a standalone controller, or install a larger cooler to make it even more capable.

But it’s definitely not the perfect fit for every application. The E4OD is big, heavy, and complex. If you’re working in a lightweight street car like a Mustang or a pure performance build where quick shifts are critical, you might want to consider something like a built C4 or C6, a 4R70W, or even a Powerglide. They’re simpler, lighter, and tailor-made for fast, high RPM shifts. Plus, the E4OD’s size can complicate custom projects; it might take some serious tunnel mods to make it fit smaller vehicles. So while the E4 excels in high torque, multi-purpose builds, other options shine when raw speed or simplicity is the goal. But hey, if you want the bragging rights of cramming a monster transmission into a Fox Body, go for it! I won’t stop you.

Although the E4OD was replaced by the 4R100 in 1998, its legacy lives on. Many of the 4R100’s improvements are direct evolutions of the E4OD design. For truck enthusiasts, this transmission remains a popular choice for retrofits, restorations, and even some high torque drag racing builds, like diesel truck racing. Its mix of durability and modern features makes it a solid candidate for upgrading older vehicles or giving newer ones a performance edge.

So what’s the bottom line? The E4 is more than just a transmission; it’s a milestone in Ford’s engineering evolution. Whether you’re restoring a classic, building a tow rig, or just trying to understand what’s under your truck, the E4 delivers a fascinating blend of old school toughness and modern tech. If you’ve got an E4OD sitting on a pallet like I do, don’t think of it as a relic; it’s an opportunity waiting to be unleashed. Whether you’re selling it, swapping it, or upgrading it, this transmission has a story worth telling and a future worth building.

So there you go, guys! That’s everything that I know, or pretend to know, about the Ford E4OD transmission. I just so happen to have this one here as a visual aid for you guys that I just got done pulling from my donor chassis with my 351 Windsor engine. So, uh, yeah, there it is! If you learned something, uh, like I did doing this video, guys, give me a like and a subscribe; it really helps me out. Uh, go grab yourself a really cool hat from my merch store; that helps me out too. If you have any questions, comments, concerns, gripes, internet ramblings, if I got something wrong, drop it in the comments and let me know. And as always, thanks again for watching, guys! We will see you next time. She’s rough around the edges, but she’s doing fine, tinkering away, getting things to shine. No garage, she’s considered divine. Thanks again for watching; we will see you next time. Thanks again for watching; we will see you next time.

Hey folks, Ed here from Bullnose Garage, and today we’re diving into the Ford E4OD transmission. This beast is not just a transmission; it’s a piece of Ford’s engineering legacy, bridging the gap between the old school toughness of the C6 and the modern demands of towing and efficiency. If you’ve ever wondered what’s going on inside this aluminum-clad marvel or whether it deserves a spot under your truck, stick around because we’re unpacking its history, quirks, and everything in between.

The Birth of a Transmission Legend

The E4OD first rolled out of Ford’s Sharonville plant in 1989, just as trucks were transforming from mere workhorses into versatile all-rounders. Built on the bones of the legendary C6, this four-speed automatic brought in innovations like electronic controls and an overdrive gear, making it a staple in Ford’s lineup throughout the 90s.

Specs and Features

This transmission is a hefty unit, weighing in at about 230 pounds dry and holding between 17 to 18 quarts of transmission fluid. The gear ratios are set up for both power and highway cruising, with the overdrive gear ratio at a fuel-friendly 0.71 to 1. The lockup torque converter is a standout, reducing slippage and boosting fuel economy—a must-have for any serious towing or highway use.

Electronic Controls and Versatility

With a transmission control module (TCM) overseeing shift points and torque converter lockup, the E4OD was ahead of its time. It was adaptable, efficient, and found its way into a wide range of Ford vehicles from F-series trucks to Broncos and E-series vans.

Quirks and Challenges

No piece of machinery is without its quirks, and the E4OD is no exception. Overheating is its Achilles’ heel, so an auxiliary transmission cooler is a must for heavy towing. Solenoid pack failures can be another headache, though they’re fixable if you have the right tools.

The Fluid Debacle

The transition from Mercon to Mercon 5 fluid caused quite a stir in the transmission world. Ford’s quiet shift in recommendations left many scratching their heads, but the bottom line is, according to Ford, Mercon 5 is now approved for the E4OD—though if you’re wary, sticking to original Mercon-spec fluids won’t hurt.

Upgrades and Aftermarket Support

The E4OD is highly compatible with parts from its successor, the 4R100, allowing for some solid performance and durability upgrades. From solenoid packs to valve bodies, the aftermarket offers a plethora of options to beef up your E4OD.

Rebuilding and Maintenance

Rebuilding an E4OD isn’t for the faint-hearted. The electronics add complexity, and getting the end play right requires precision. But for those willing to take on the challenge, or pay for a professional rebuild, the rewards are a transmission that can handle serious torque.

Is the E4OD Right for You?

The E4OD is perfect for high-torque builds, towing rigs, or heavy-duty haulers. But if you’re after quick shifts in a lightweight performance build, you might want to consider other options like a 4R70W or a built C4.

Conclusion

So there you have it, folks! The E4OD is more than just a transmission; it’s a testament to Ford’s ability to marry old-school durability with modern tech. Whether you’re looking to upgrade, restore, or simply understand what’s under your truck, the E4OD offers a fascinating blend of history and potential.

Check out the video at the top for a more detailed look, and as always, let me know your thoughts in the comments. Give a thumbs up, subscribe, or grab some merch to support the channel. See you next time!


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