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Old 09-04-2013, 12:46 PM
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KT2T KT2T is offline
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Default Re: 6.2L & 6l80 Power Uprades

Quote:
Originally Posted by MVR 155
Another thing..... for the guys with the 2003-2007 trucks suggesting 4.88 gears..... The 08/09's stock have 3.73 gears vs. 4.10's that come in the 03-07's.

I went looking for this information before MVR 155 posted the above and found this:

http://www.vibratesoftware.com/html_...MER/Hummer.htm

On that page, it lists 2003-2008 with 4.10 but that the 2008 optionally has 3.73. If this is the case, how would a second-hand owner of a 2008 validate what's already in the truck to determine what gearing to move to? I have also put 37x13.50 Interco SS M16 on my truck and have been thinking about re-gearing (thus my interest in this thread).
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2000 HUMMER HMCS, kevlar flat black, Rubber Duck lift, Predator stage 3 kit, Predator (Wilwood) Big Brake kit, a work in progress...

2008 H2, graystone, air suspension (DELETED), U-steps, SMA brushguard w/valance (DRLs replaced by PIAA 520s), black taillight guards/locking fuel door/roof crossbars (x4), Cognito UCA/pitman-idler, Bilstein shocks, Rancho steering stabilizer, Kryptonite tie rods, green keys, Fuel D525 20" Revolver, 37" Nitto Ridge Grappler
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