so i swapped the 5.3 out for another 1999 6.0 it has the long crank and no removable spacer. so im going to swap a 4l80e into my 1999 gmc sierra reg cab short bed4x4 . what year trannys will work?? and what am i going to have to do to make that tranny work in there?? also what transfecase will i need?