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The Revolution Gear & Axle GM 10-Bolt 8.5in/8.6in ring and pinion set provides a 5.13 final drive ratio for GM 10‑bolt 8.5in and 8.6in axle applications. This replacement gear set restores correct gear engagement and final drive behavior after wear, and is intended for direct installation into compatible GM 10‑bolt axle housings where a 5.13 ratio is needed.
Revolution Gear & Axle GM 10-Bolt 8.5in/8.6in 5.13 Ratio Ring & Pinion Set
