leaf sprung,
We ran a Ford 3.8 EFI in it. But moved it about 2.5-3 inches back. Then used a T-18, Dana 20.
His rear Dana 60 looks like it might have oiling probs. But none so far.
It wasn't that bad to fab up some spring perches. Just used some 2.5 inch square tubing. We just set them in place and bolted everything up, rotated the pinion to where he wanted it and welded the perches. He's ran it like that for almost a year now with no problems.