The C4 3-speed automatic is the most popular transmission for the V8 swap. Three different length C4 adapters eliminate the need for driveshaft modifications. To determine which adapter you need, measure the overall length of your existing trans assembly from the back of the engine block to the front of your transfer case, then match the closest possible length below. The transmission code numbers can be checked, but keep in mind the tag on the door may not match the vehicle. Therefore, checking the physical length is preferred. When using a C4 with a 5.0L, its best to use an engine control computer that came with a manual transmission, as they don't require input from transmission sensors.

The Ford C4 adapter to the Borg-Warner 1350 transfer case are available in 3 lengths 6.812”  8.750", and 11.50".  By selecting the correct length adapter you should be able to get close to your stock drive-train length. To do this take your overall stock drive-train Length (from the bellhousing to transfer case connection surface) and subtract the length of the C4 transmission (17") Adapter material is 356 T-6 heat treated aluminum alloy and the adapter has a provision for a transmission mount. Our adapter kit includes an adapter housing, new C4 output shaft, vent, fastening hardware, and adapter instructions.

Transfer Case
This adapter assembly fits the Ford Borg-Warner 1350 series transfer case found in the Bronco II, Ranger & Explorer trucks. The transfer case has a 25 spline female input sleeve. This transfer case has been manufactured in both a manual shift and electric shift.

Transmission
The kit is designed for exclusive use with the Ford C4 automatic transmission. The Ford C4 is a 3 speed transmission was used between 1963-’82. The transmission bellhousing is
Removable, the overall length measures 17.00”.