Hate to tell all, but a few weeks ago this popped up in the tech section, and I confirmed with the engineer in charge of axles, and there is only ONE axle ratio offered on the 2006 H3 Hummer; and that is 4.56:1.
This is irregardless of what a marketing sheet has on it. Prior to calling, I had pulled vehicle information build sheets for autos, manuals with and without the off-road package, and found only 4.56 gear listed.
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Black Sheep Hummer Squadron
(ME TOO)
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