Everything up to 01 should work. Rare to find, but a few 01 trucks got rear discs. After the new body style in 02 the widths changed. And I believe the earlier trucks 93 and under are even narrower. I have been thinking of swapping in an 01 rear end under my 92, but haven't measured it up yet. I want 3.23 gears for my diesel swap, more highway friendly.