* ZF-S5-43: This was the standard transmission and was a 5-speed manual.
* BorgWarner T19: This was a 4-speed manual, typically found in earlier model years, but could still be present in an '86 model.
To know for sure what transmission your specific truck has, you'll need to look at the following:
* VIN number: The VIN will tell you the original transmission code.
* Transmission tag: This tag is usually located on the side of the transmission case. It will show the model number.
* Shift pattern: The ZF-S5-43 has a "H" pattern, while the T19 has a straight pattern.
Once you know the transmission model, you can look up its specifics and identify its features.
