W56, but you have to either get a top shift t-case for an early W56, or a top shift or late style forward shift case('89-95 w56). your early forward shift case's shift rods are too long to work.
I'm looking at doing the same thing.i have a 84 extra cab and want to put in a w56d trans and t case .i have read every thing i can find
but i have two questions.
1 will my speed-o work on that trans or is it set up for the electronic one .
2 are the shifters in the same place as the forward shift g trans.
thanks for any help or links
john
