? on rear axle / locker

[f5fstop]

There are two axle assemblies offered for Hummer H3s, and both are 4:56 ratios. Part number 15822875 is the non-off-road package, 15822876 is the off-road package (with the Eaton locker set). Both axles are manufactured by AAM. Rear axle is an 8.5” axle.

If GM produces a 4:10 gearing, they would have to list it in the parts catalog for possible warranty or non-warranty replacement.

So, just to set this subject aside, I contacted the engineer in charge of axles, and it is verified that GM offers only ONE axle ratio for the H3; and that gear ratio is 4.56:1.