Blew my rearend out...

[mtndewmaniac66]

Originally Posted by N2TRUX

I "think" you might have a 12 bolt rear in the Burb since it came with a diesel, but my books don't cover that. You will probably have a 10 bolt rear in the truck. You can count the bolts on the dif cover to be sure.

Beyond that they should be the same. It's a crap shoot as to what gear ratio they have. Look at the glove box door and see if the spec sheet offer any clues.

Believe it or not, I have a '84 that came with the 6.2L, and it only had the GM 10bolt, 3.73:1 ratio, limited slip rear. The previous owner blew the diesel up and had swapped in a 350 V8. Last year, I blew out the rear axle by catching pavement after I started spinning on a small patch of ice. I could never figure out why GM put such light weight axles under a Suburban, much less behind a 6.2L diesel!