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Go Back   Hummer Forums by Elcova > Hummer H3 Discussion Forums > Technical Discussion and Customizing your H3

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Old 07-28-2005, 04:54 PM
H3Lady H3Lady is offline
 
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Does anyone know the widest wheel that they install on their H3 that works OK without rubbing
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Old 07-28-2005, 04:54 PM
H3Lady H3Lady is offline
 
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Does anyone know the widest wheel that they install on their H3 that works OK without rubbing
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Old 07-29-2005, 01:49 PM
FormerJeeper FormerJeeper is offline
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Like I said, a 16x10 with 4-5" backspacing will work fine. Maybe 4.5" is the magic number.

Work it out this way:

Stock wheel is 16x7.5"

Stock 33" tires are 9" wide.

Stock offset is 30mm = 1.18" (negative).

Therefore stock backspacing is 7.5 - 1.18 - 0.25" (most charts recommend this), roughly 6".

If stock backspacing is 6" and tread width is 9" you can figure out how far "in" the stock tire sits.

All you need to do now is get a new wheel that moves the new tire outwards on the axle to get the inside of the tire in 'roughly' stock position.

Therefore, my proposed new tire is 1" wider in tread width, threfore I only 'need' to move the tire out by half the difference.

Anyway, make a google search on how to measure backspacing, take your spare off and measure it to be sure and then order new rims!

-C
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