Going to be putting on 32x11.5x15 with a 3 inch suspension lift. going with cooper discoverer SST pro the spec sheet said RIM size of 8 inches wide recommended I currently have 15x7 so do I need to upgrade to 15x8 to fit them or whats the draw backs on running on a 15x7
Rim size
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8" is ideal but you should be fine on a 7" wide rim. I know a few guys running 12.5" wide tires on 7" rims and haven't heard of any issues.
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