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GMC WHEEL SPECS
Fitment Stance lists recorded OEM wheel specs for 13 GMC models. The most common bolt patterns are 6x139.7 (7), 5x115 (2), 5x120.65 (2). Recorded front wheels run from 16 to 22 inches in diameter, with offsets from ET0 to ET46. Many records are still awaiting source verification, so confirm the exact year, market and trim before buying wheels.