I've been fighting the Bolt Pattern/offset problem, but the biggest problem with aftermarket wheels is that the centerbore on the H3 is much larger than other GM products. The bolt pattern is the same as the Escalade and the offset is close (+30mm H3 : +20mm for the Esc), but the big problem is the centerbore for the H3 is 100.6 while most GM (Esc, Tahoe...) is 87. Most aftermarket wheels will not fit the H3. You have to use the foreign vehicle wheels to accept the larger centerbore, but then the offset is off by over an inch. There are only a handful of wheels made that will work on the H3 correctly or close........... or you can have the centerbore "milled" to to fit the H3. I kept being told if I waited 4-6 months there should be multiple wheels for this application. I didn't want to wait.
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