The Yukon USA Standard ring-and-pinion set for Ford 9-inch differentials (4.11 ratio) supplies a direct-fit gear set for axle rebuilds or ratio swaps in Ford 9" applications. Yukon’s in-house testing ensures these sets exceed OEM dimensional and fitment specifications. Fits a 9.00" ring gear diameter with 10 ring gear bolts and a 28-spline pinion, engineered for Ford 9" final-drive configurations requiring a 4.11 ratio.
USA Standard Ring & Pinion Gear Set For Ford 9in in a 4.11 Ratio