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The Yukon USA Standard ring and pinion set for GM 8.5‑inch axles in a 3.08:1 ratio is a direct replacement for stock gears on compatible assemblies. It fits GM 8.5‑ and 8.6‑inch axles with an 8.50‑inch ring gear diameter, 10 ring‑gear bolts and a 30‑spline pinion. Yukon describes these sets as exceeding OEM specifications and subjecting each set to rigorous dimensional, material and fitment checks.
USA Standard Ring & Pinion Gear Set For GM 8.5in in a 3.08 Ratio
