Will this Hummer H3 cast rear differential cover fit our trucks?

rfross · Feb 26, 2011

I've seen previous posts here about the Hummer AAM axle versus the 355 axle. Does anyone know if the differential cover bolt patterns are identical between the Hummer and 355? If so, this would be a pretty cool addition:

ALUMINUM REAR DIFF COVER CAST FINISH / 2006-2010 HUMMER H3 & H3T

They also have a polished and black powder coated version, too.

05blackcolly · Feb 26, 2011

i havent looked into the h3 diffs all that much but as long as theyre are the 8.0 i dont see why not

kettering · Feb 26, 2011

Get a gasket for ea. one & compare. That should give you a good idea. Or, maybe the parts #'s are the same. Even easier!

cmagg72 · Feb 26, 2011

The H3 has a 8.625 ring gear.
The part #'s for the gasket are different.

Bohner · Feb 27, 2011

H3 rears are bigger it won't fit

Will this Hummer H3 cast rear differential cover fit our trucks?

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