The Yukon USA Standard ring and pinion set for GM 8.25‑inch IFS (reverse rotation) in a 4.88:1 ratio replaces worn final‑drive gears to reestablish the intended axle ratio. It fits 2013 and earlier GM 8.25‑inch IFS applications with an 8.25‑inch ring gear diameter, 10 ring‑gear bolts and a 30‑spline pinion. Yukon notes these sets are built to exceed OEM specifications and undergo rigorous in‑house evaluation.
USA Standard Ring & Pinion Gear Set For GM 8.25in IFS Reverse Rotation in a 4.88 Ratio