NBS rear end fit?

nrowensby · Aug 31, 2016

Thinking about a 6lug conversion and found a good deal on a NBS rear end, do these bolt up or do you have to find OBS rear ends? (Either 4x4 or 2500)

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someotherguy · Aug 31, 2016

If you're not going lowered (you posted in the lowered section) and don't care if your track width gets screwed up, you can get the 4WD rear axle. It's wider than the 2WD axle, by about 3-4". Worthless for a lowered application.

I'm pretty sure the "NBS" (GMT800 and really anything newer since they're all 6 lug in half ton) is wider as well, even in 2WD, just don't have the measurements handy.

The axle you want for the most direct swap is from a GMT400 (1988-1998 body style) C2500, meaning 2WD, and light duty (7200lb. GVWR) that is the 6 lug rear that is the correct width for swapping into a 2WD 1500. It's not a simple bolt-in but there's plenty of threads already on it...

Richard

beardeddummy · Sep 1, 2016

Will the nos shock perches and what not line up

dcp1992 · Sep 6, 2016

If you want to go with a GMT800 rear axle you will have to move the spring perches. The GMT400 and GMT800 spring widths are different but it's not too hard to move the perches, if you have a welder and an angle grinder. You would also have to modify the brakes to get the correct pressure for the rear disc.

NBS rear end fit?

nrowensby

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someotherguy

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dcp1992

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