it had a small block chevy i put in for my brother about 3 years ago. when it spit the original t5 he lost interest in it. so it was simple goin to another small block cause that old 400 got like 8 miles to the gallon. i rebuilt a stock vortec 350 and put a 4l60e in it. left the dana 300 in it. had to redo the fuel system and quite a bit of electrical. then i put a full width dana 44 and 14 bolt ff in with a spring over and shackel reversal. all thats really left are brake lines drive shafts real exhaust steering and gears and lockers.