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Revolution Gear & Axle ring-and-pinion set for GM 10‑bolt 8.5/8.6‑inch axles with a 4.88 final drive ratio. It provides a matched ring and pinion to restore correct axle gearing for towing, hauling, or gear ratio changes. The face‑hobbed gears are supplied as a matched set for accurate tooth mesh and direct installation into compatible GM 10‑bolt housings.
Revolution Gear & Axle GM 10-Bolt 8.5in/8.6in 4.88 Ratio Face Hobbed Ring & Pinion Set
