I found someone with a bigger truck, a 1993 Topkick. They said it has the 7.4L with an Allison auto Trans. I wasn’t sure if I’d be able to swap these two.
I’ve looked at many threads and found a lot of contradicting information:
My 4L80E in my 93 Chevy 3500 2wd lost reverse and I need to replace it or swap it. I’m having a really hard time finding a Transmission and every shop I talk to tells me something different.
So I’m told I can only use...