The Yukon USA Standard ring and pinion set for AMC Model 20 in a 4.56:1 ratio replaces stock gears for that axle ratio. It fits AMC Model 20 applications with an 8.875‑inch ring gear diameter, 8 ring‑gear bolts and a 28‑spline pinion. Yukon indicates these sets exceed OEM specifications and subject each set to rigorous in‑house dimensional, material and fitment evaluation.
USA Standard Ring & Pinion Gear Set For Model 20 in a 4.56 Ratio