
If you’re thinking about upgrading your Ford truck with a 5-speed manual transmission, the ZF5 is one of the best options out there. In this video, I break down everything you need to know about the ZF5, including the differences between the S5-42 and S5-47, compatibility with different engines, and how to handle a ZF5 swap into your truck.
What Makes the ZF5 Special?
The ZF5 is a 5-speed manual that came in Ford trucks from the late ‘80s through the ‘90s. It was built to handle tough jobs like towing and off-roading, and its 5th gear overdrive makes highway cruising a lot smoother compared to older 4-speed transmissions like the NP435. Whether you’re restoring a Ford F-250 or F-350, or you’re working on a Ford Bronco, the ZF5 is a solid option.
The Difference Between the S5-42 vs S5-47
There are two main versions of the ZF5: the S5-42 and the S5-47. The S5-42, made from 1987 to 1994, handles up to 420 lb-ft of torque. It’s great for daily driving and moderate builds. The S5-47, from 1995 to 1998, can take up to 470 lb-ft, making it the better option for heavier-duty trucks and more powerful engines.
Which Ford Trucks Came With a ZF5?
The ZF5 was found in:
- Ford F-250 (1987-1997)
- Ford F-350 (1987-1998)
- Ford Bronco (1987-1996)
- Ford E-Series Vans (1988-1996)
Each truck had different bellhousing patterns – small block, big block, or diesel – so if you’re planning a ZF5 swap, make sure the transmission matches your engine.
Why Choose a ZF5?
So why would you go for the ZF5? It’s tough, reliable, and gives you that 5th gear overdrive, which is a huge improvement for highway driving. Whether you’re towing, off-roading, or just want something more durable, the ZF5 is a great fit for most Ford trucks. And because it’s so versatile, you can pair it with everything from a 5.0L Windsor to a 7.3L Power Stroke Diesel.
Thinking About a ZF5 Swap?
If you’re planning a ZF5 swap, there are a few things to keep in mind:
- 4×4 vs. 4×2: These configurations are not interchangeable, so make sure you get the right one for your drivetrain.
- Driveshaft Modifications: You might need to modify your driveshaft for the ZF5 to fit properly.
- Crossmember Adjustments: Depending on your truck, you may also need to adjust the crossmember to get everything lined up.
Common Issues with the ZF5
Like any transmission, the ZF5 has a few common issues, but they’re generally easy to fix. Synchro wear on 2nd and 3rd gears can make shifting tricky, but regular maintenance can help. Another issue to watch out for is input shaft bearing noise, which can lead to whining under load. And finally, shift fork wear can cause poor gear engagement over time, but replacing them during a rebuild will keep your ZF5 running smoothly.
Pricing and Availability
A used ZF5 transmission usually costs between $400 and $1,200, depending on condition and configuration. If you want a rebuilt ZF5, expect to pay around $1,200 to $3,000. Rebuild kits typically range from $400 to $600 if you’re planning to do it yourself.
Conclusion
In the end, the ZF5 transmission is a fantastic option for anyone looking to upgrade their Ford truck. Whether you’re going with the S5-42 for a lighter build or the S5-47 for heavy-duty use, the ZF5 delivers the strength and reliability you need. Make sure to check out the video for a full breakdown and all the tips you need to know before starting your own ZF5 swap.

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