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They will be the same as what you have, a lot of them were 3.73 or higher geared with an overdrive. The reason I was suggesting those is that they should be a direct fit.

The GM overdrive transmission is a pretty good unit, but cost prohibitive to get set up for most of us. I was talking about just swapping a set of axles out of a Suburban or Civilian gas Blazer or 1/2 ton pickup. Most of the guys are talking about a ring and pinion swap, front and rear. Glen

Keep your eyes peeled for a 4x4 1/2 ton pickup, or Suburban. I saw a few get crushed in the last six months and thought about grabbing some axles for future trading power or to help a fellow member out with. You might get lucky and score a set for less than you can buy the ring and pinons for. I...