3spd to 4spd trans swap...

[combatmech]

Howdy all,
Looking to upgrade my transmission. What other parts are required to make the TH400 to 700R4 swap?? Will it require a different transfer case or drive shafts?

 

[eric_banks32]

Your driveshafts will work. You will either have to keep the transfer case that was behind the 700r4 or swap out the 700r4 output shaft to match the one you have now which is expensive. Don't forget that you must have a governor, tv cable brackets and torque converter from a diesel truck. Use the search function and you will find all sorts of info on this.