These axles must be from a 4x4 and be 88-98 year model and 6 lug or they will not work. I believe 3.42 gears, will know more and post up later. This is going back in a stock 95 Z71. The old 10 bolts from Blazers and crap will not work nor will the 10 bolts from a 88-98 2 wd because they are quite a bit narrower. Close or in Texas needed.