That rear end is some sort of a 10 bolt. A 9.5 has a 14 bolt cover and is a lot bigger.Looks like a 9.5 inch rear to me
|GM||Envoy, Canyon, Colorado, Trailblazer, Rainier, Bravada, Astro, S||2002 - 2011||8.0" 10 Bolt - Rear Axle|
What year ZR2's are you saying have 8.6 ring gears?I have a couple ZR2 8.6 rearends and they look completely different. They have a big lug at the bottom of the carrier on each side and the axle tubes decrease in diameter about 2" outside of the carrier. The pictured axle has neither of those features. Also the 8.6 doesn't have the hollowed out area at the bottom of center section like the one in the picture. Pretty sure what's pictured is the 8.0
|Sierra, Yukon, Silverado, Avalanche, Tahoe, Suburban, Escalade. I think the top of the cover is on the right side of the picture.|
That's the standard axle for a 2004 Trailblazer, Envoy, Rainier, etc.
Correct on all points! Back in the '70's, '80's, '90's, I was motorhead like many here--I owned Bowtie Supply in Buffalo NY. We were a combo speed shop and restoration parts store. We sold both new & used parts for most classic GM musclecars & ponycars. We sold genuine GM parts cheaper than GM dealers did, likewise w/restoration aftermarket parts, weatherstripping, underhood decals, emblems, molded carpet sets, crate engines, seat covers, door panels, etc. We were like Year One or Classic Camaro Parts, just much cheaper prices. I even built performance engines right there.That's the standard axle for a 2004 Trailblazer, Envoy, Rainier, etc.
It won't fit up to an S10, but I do know you ask a bunch of questions around here for the newer Envoys/Trailblazers, so I'm assuming you're asking because of those vehicles not the older S10s/Blazers.