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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

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  #1  
Old 04-25-2010, 04:38 AM
kalantar kalantar is offline
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Default Re: which gears? 4.56's or 4.88's?

Bump on this thread, what did you decide to do?
Even though the 4:56 gears didnt improve my mpg, I do have to admit it drives better now.. I can hit 100 mph no problem and just seems to shift/drive much better...

Would 4:88s do even better?
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Old 04-26-2010, 08:10 PM
Hellz Hellz is offline
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Default Re: which gears? 4.56's or 4.88's?

well i think i have decided on the 4.88's... just @ $1800 for parts and labor is the problem.

most places want to buy the parts for me so i can get the warranty. which makes sense...

sucks i can buy all the parts for about $700ish....i just dont know how to install them.. labor is a bitch!
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Old 08-28-2011, 08:49 AM
kalantar kalantar is offline
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Default Re: which gears? 4.56's or 4.88's?

Bump on this thread. How does the car run on 4.88s?
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Old 08-30-2011, 05:47 PM
Hellz Hellz is offline
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Default Re: which gears? 4.56's or 4.88's?

hehe i didnt get around to doing this earlier... and currently deployed right now.

so maybe summer of 2012 i will be able to get this done.

i miss driving my H2
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  #5  
Old 08-31-2011, 04:43 AM
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H2Much H2Much is offline
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Default Re: which gears? 4.56's or 4.88's?

I did 4:88's on mine when I first went to 37's, had to do it to really get the vehicle to ride right. Had it chipped too, ran awesome. Recently jumped to 40's though, really feeling the ceiling on power now. Have been looking at alternatives to bump up the power besides going supercharger; don't really have 5 G's laying around.

Have to go 4.88's for sure though, especially with the 37's, it would just ride the way it should and give you a good power ratio for those big tires. Just my opinion.
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Sweet looking H2 with not enough mods (2003 Pewter H2, 20" Rockstars, 40"x15.5" Toyo MT's, E&G Extended Flares, Full body tube steel exoskeleton, 5" Skyjacker lift, Amp Research steps, Gobi Roofrack and ladders, Smoked LED's, AFe CAI, Dynatech long tubes and cats, Magnaflow exhaust, Stock tune, 4.88 gears, Chrome Grenade Shifter, interior blacked out, rear captains chairs, Solar Power!!)
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