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The Yukon ring-and-pinion gear set for GM 12‑bolt passenger car in a 4.56 ratio provides a direct-fit final drive upgrade engineered to OEM specifications. Yukon finishes the gear tooth surfaces to lower friction and heat, and uses high‑grade steel for strength and wear control. The set fits GM 12‑bolt passenger car applications with an 8.875 in. ring gear, 12 ring gear bolts and a 30‑spline pinion.
Yukon Gear High Performance Gear Set For GM 12 Bolt Car in a 4.56 Ratio
