[donw1986]

I have 86 c10 that came with a 700r4, however those trannys sucked when they first came out mine went out 3 times then i found a kit that you could put a turbo 400 in instead kit had a smaller output shaft to install in the 400 and a shorter tailhousing, so you could just bolt it to your motor and use the factory yoke and driveshaft, you vould have some kind of kit like that in it