They do NOT. I have seen several 460 ZF5s machined out to bolt up to a 7.3 though. The 460 ZF5 has a WAY lower 1st and reverse than the 87-95 Diesel S42-ZF5 and even lower than the Diesel 96/97 S47-ZF5. They are really nice for maneuvering a trailer around.
But you will want an OD trans anyway, so i would not use your current trans
Looking for Blue 40-20-40 seat for OBS. PM me if any known