The Revolution Gear & Axle face‑hobbed ring and pinion set for GM 10‑bolt 8.5in/8.6in axles in 4.56 ratio is a matched gear pair specified for that axle family. Intended for GM 10‑bolt 8.5in and 8.6in applications requiring a 4.56 ratio, the face‑hobbed ring-and-pinion set supports gear replacement or re-gearing operations on compatible axle assemblies.
Revolution Gear & Axle GM 10-Bolt 8.5in/8.6in 4.56 Ratio Face Hobbed Ring & Pinion Set