• If you currently own, previously owned or want to own an Avalanche, we welcome you to become a member today. Membership is FREE, register now!

02 Z66: What Rear Axles will fit

2002mizzouav

Full Member
Joined
Aug 4, 2014
Messages
16
Location
Whiteman AFB
Hello all,

I currently own a 02 Z66 Avalanche with the G80 GT4 3.73 setup. My rear end is grinding pretty bad, so I plan on getting a lower mileage unit from the junk yard.

Will any GM rear end setup work? Or does the Avalanche have some differences from say the Silverado or Tahoe with the same axle options?
 
SHould be same as suburban for mounts and everything else of same year.

Might be easier to have your differential repaired.
 
Price wise, swapping in a salvage is cheaper. Finding someone to repair it under $1k is tough. Next question, I found a G80, GT4 3.73 rear end, however, it is 4x4.

I've read the 4x4 rear end is the same? Is this true?
 
But it is not likely the junk yard rear end is in THAT much better shape than yours unless you get lucky and find one with only a few miles on it...

Rodney
 
I believe they are all the same except the springs and shocks which are specific to each model. Also if your looking for a stronger rear end a H2 Hummer will fit with minor modification.
 
Back
Top