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Yukon USA thick ring-and-pinion set for GM 12-bolt truck differentials in a 4.56 ratio, noted as thick gear for 3.42-and-down carriers. Intended for 12-bolt truck housings with an 8.875-inch ring gear diameter, the set includes 12 ring gear bolts and a 30-spline pinion for correct fitment. Yukon states these kits exceed OEM specification and are inspected through dimensional, material and fitment testing for dependable axle service.
USA Standard Ring & Pinion Thick Gear Set For GM 12 Bolt Truck in a 4.56 Ratio
