If its going with that V6, then its the wrong transfercase.
You need a 23-spline version of that transfercase.
You can find them in 4WD 1986-1987 Turbo 22RTE Trucks. BUT, those are forward shifting and you cant use that behind our adapter plate.
So you would be better off finding ANY topshifting-style transfercase (79-83; 85-88 EFI) and converting the input to 23-spline -- just exchange the 21-spline with a 23-spline input. We sell them for $165. Can't find a lower price than that!
Just to give you a piece of mind, check out these two threads on Transfercases:
TC Questionsdual csesRegards,
BigMike
