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Old 07-23-2018, 03:25 PM   #9
Ski-me
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Join Date: May 2012
Location: Colo Springs, CO
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Re: 4x4 suburban wheel offsets

Those are probably 15x7, factory aluminum wheels. The steel wheel variation is 15x8.

I couldn't get Discount tire to mount 33x12.5's on the 15x7 aluminums so if you are going bigger, than changing out the rims are a good idea too.

Sorry, don't know the offset or backspacing off hand.
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89' K5 Blazer, 2.5" lift, 35" tires
04' GMC Yukon XL, 3/4 ton, 8.1L
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