I know the answer is probably here in the thousands of pages but

Some great info here for us, 8 1/4 for me one day and do the limited slip or sure grip diff, gears from a Cherokee 96 and older, these jeeps are everywhere, Thank you 1970 Duster :cheers:
No problem, just remember that you need the A-Body 8.25 Axle and housing with the 2.71 (? or is it 2.94, which one I can't remember off the top of my head) or higher gears. the 2.41 axle won't support something bigger if I'm not mistaken.