I put a ZF in one of my 85 Std cab pickups, used the stock 1345 t case, used the original t case shifter. I also used the original shift boot from the T19, only rotated it 180 degrees, drilled new holes in the floor pan, and cut the boot down a little to fit over the square part of the shifter. Also put different bolts into the shifter that had a smaller head, so the boot would fit better.
I'd take pics but the whole package is out of the truck right now. I would compare the shifter location to be the same as the 87 up trucks.
Hope it helps.
Chris