1986 F150 4×4 Manual Transmission Swap Options

Hey there! Swapping from an automatic to a manual transmission in your 1986 F150 with the 351W is a fun project that can really transform your truck!

For your setup, one of the easiest manual transmissions to swap in would be the T18 or T19, which are both robust options. They were commonly used in the Ford trucks of that era and are known for their durability. The T18 is a four-speed and offers a good balance for both on-road and off-road use.

Another solid choice is the NP435, a four-speed transmission that’s also compatible with your 351W and offers a good low gear for off-roading.

Here are some steps and considerations for the swap:

1. Transmission and Tailhousing: You’ll need the transmission, bellhousing, and tailhousing from a compatible manual setup. Make sure to match the input shaft length to your 351W.

2. Clutch Setup: You’ll also need a clutch pedal assembly, master and slave cylinder, and all associated hydraulic or mechanical linkage.

3. Driveshaft: Check if your driveshaft needs to be modified or replaced. The length might change depending on the transmission you use.

4. Crossmember: You may need to modify or replace the crossmember to fit the new transmission.

5. Wiring: Don’t forget to disconnect any wiring related to the automatic transmission — you won’t need it anymore!

6. Shift Linkage: Pay close attention to the shift linkage. Depending on your chosen manual transmission, you might need to fabricate or adjust the linkage for proper fit.

This swap can be a bit of work, so take your time and enjoy the process! If you want to dive deeper into specifics, you might find some helpful guides or videos on the Bullnose Garage YouTube channel. They often cover swaps and modifications that can really help out!

Feel free to reach out if you have more questions or need specifics on a certain part of the swap. Happy wrenching!