373 - Hummer Forums - Enthusiast Forum for Hummer Owners - Threads Tagged with 373

Hummer Forums - Enthusiast Forum for Hummer Owners
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Threads Tagged with 373

Threads Tagged with 373

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37, 373, cluster, gears, gm, h3, h3t, hummer, hypertech, i5, pcm, program, speedometer, tuner, tuning

HyperTech programmer for 3.7!!

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1 2 3)

Xlr8n on 08-15-2012

05-15-2013 11:26 PM
by Roy79

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23

25,076

PRIVATE For Sale / Trade Classifieds

2011, 355, 373, change, decline, end, forums, gas, gear, gears, h2, h3, hummer, mileage, ratio, rear

Has anyone installed 3:73's in their H2 for gas mileage?

hammer44 on 02-25-2011

03-07-2011 03:21 PM
by GirlieH2

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6

3,588

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Exclamation

03, 04, 2007, 35, 373, calculator, change, convert, differance, differental, gear, gears, h2, hummer, inch, ratio, tires

H2 Diff Ratio Change

bosshogg123 on 03-25-2010

03-30-2010 05:35 AM
by bosshogg123

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4

15,091

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