The Yukon 11.5" AAM 4.56 rear ring-and-pinion master kit fits GM and Chrysler/Dodge/Ram AAM 11.5" applications and combines a matched 4.56 ratio gear set with a complete install kit. Included are the 4.125" OD inner pinion bearing and race, bearings, seals and the small hardware needed to rebuild the carrier, providing a consolidated solution for re-gearing the axle.
Yukon Gear 11.5in AAM 4.56 Rear Ring & Pinion Install Kit 4.125in OD Pinion Bearing