Tag 1984 F250

Converting a 1984 F250 from 2WD to 4WD is a big project, but definitely doable. Going with a Dana 44 straight axle is a solid choice — especially if you want a more straightforward and durable setup compared to the Twin-Traction Beam (TTB) alternative. Let’s break it down.

Why Choose a Dana 44 Solid Axle?

1. Simplicity: The solid axle with radius arms and coil springs is less complex than a TTB setup. That means fewer moving parts to maintain and replace.

2. Durability: Solid axles are generally more robust, which is a plus if you plan on doing any heavy-duty work or off-roading.

3. Aftermarket Support: A solid axle swap has a lot of community support and available parts, including lift kits and custom fabrication parts.

Steps for the Conversion

1. Front Axle Swap:

   • Remove the existing 2WD suspension and components.
   • Install the Dana 44 axle. You’ll need to ensure you have the proper brackets for mounting the radius arms and coil springs to your frame.
   • Make sure the axle is correctly aligned and centered.

2. Transfer Case Installation:

   • Swap out the 2WD transmission or modify it to accept a transfer case. A transmission with a removable tailshaft is ideal.
   • Install a transfer case compatible with your transmission. The NP205 or NP208 are common choices.

3. Driveline Modifications:

   • Fabricate or source new drive shafts for both the front and rear. Length and yoke compatibility will be crucial.
   • Ensure the U-joints are properly aligned to avoid vibrations.

4. Steering Adjustments:

   • Modify or replace the steering linkage to accommodate the new axle.
   • Consider a crossover steering setup if you’re looking to improve handling and reduce bump steer.

5. Brake System:

   • Adapt the brake lines for the new axle setup.
   • You may need a proportioning valve to balance the brake force between the front and rear.

Pros and Cons

• Pros: Improved off-road capability, increased durability, and a straightforward setup compared to TTB.
• Cons: Requires cutting and welding, driveline modifications, and potential challenges with legalities or inspections.

Potential Pitfalls

• Alignment: Proper alignment of the axle and radius arms is crucial. Improper setup can lead to handling issues.
• Parts Compatibility: Ensure all parts like the transfer case, drive shafts, and steering components are compatible with your setup.
• Budget: This swap isn’t cheap. Consider all costs, including unforeseen ones, before diving in.

If you’re looking for more detailed guidance, check out some resources on the Bullnose Ford subreddit or see if the Bullnose Garage channel has related videos. Good luck with the swap, and keep asking questions if you need more info!

Converting your 1984 F250 from 2WD to 4WD is quite the project! It’s a doable endeavor if you’ve got the time, tools, and determination. Let’s break down the process and the main components you’ll need to tackle.

Key Components Needed

1. Front Axle:

   • You’ll need a solid Dana 44 or Dana 60 front axle, depending on the weight and intended use of your truck. The Dana 60 is heavier duty and might be preferable, especially for an F250.
   • Ensure you get the necessary radius arms, coil springs, and brackets.

2. Transfer Case:

   • The NP205 is a solid choice for durability. You’ll need the appropriate transfer case adapter to mate with your existing T18 transmission.
   • Double-check your driveshaft lengths, as they will likely need to be custom made or sourced.

3. Driveshafts:

   • Front and rear driveshafts will need adjusting or replacing to fit the new setup. Be prepared to have custom ones made or modified.

4. Suspension and Steering:

   • 4WD conversion may require modifications to the suspension, such as installing leaf springs or converting to coil springs, depending on your front axle choice.
   • Steering components will need upgrading to handle the 4WD setup, like a steering box compatible with 4WD and potential linkages.

5. Crossmember and Mounts:

   • Ensure you have the right crossmember and mounts for the transfer case. Fabrication might be necessary.

Steps for Conversion

1. Planning and Research:

   • Gather parts and research thoroughly. Look for a donor truck if possible, as it can provide many of the necessary components in one go.

2. Front Axle Installation:

   • Remove the existing 2WD front suspension and install the 4WD front axle. This might involve welding new brackets and modifying the frame slightly.

3. Transfer Case and Transmission:

   • Remove the existing transmission if needed to install the transfer case adapter. Install the transfer case and ensure proper alignment and support.

4. Driveshafts and Linkages:

   • Install or modify driveshafts to fit the new setup. Ensure the angles are correct to avoid vibrations.

5. Steering and Brakes:

   • Update the steering linkages and ensure brakes are configured for the new axle setup. Consider upgrading to heavy-duty brakes if not already done.

6. Testing and Adjusting:

   • Test drive and check for any unusual noises or behaviors. Adjust as necessary.

Pro Tips

• Donor Truck: Finding a similar generation 4WD truck as a donor can save you time and hassle, especially for components like axles, transfer case, and linkages.

• Documentation: Keep track of what changes you make and any custom work done for future reference or troubleshooting.

• Community Resources: The Bullnose Ford subreddit is a great place to connect with others who may have tackled similar projects.

Converting to 4WD is a substantial project but can be highly rewarding, enhancing the capability and value of your truck. Good luck, and enjoy the process! If you need more detailed guidance along the way, feel free to ask.