Let me see if I understand. I can use the case from a 2wd. I believe the trans is cracked before tailshaft. Use internal parts and tailshaft from 4x4 and it will be all good. Both trans are Turbo400


72 GMC 3/4 ton 350 4bbl, 4spd w/ 18 000 miles (Yes, only 18 000 miles!!!)
1962 **** Unibody w/60 000 miles
1970 **** 1/2 ton Sport Custon
1976 Gmc 1/2 ton Sierra Grande
1982 **** 1/2 ton Custom
1995 Dodge 3/4 ton Cummins w/sweet power mods