Yukon Gear Buick Chevrolet Oldsmobile Pontiac Differential Ring and Pinion Kit

YGK2338

LSD and Re-Gear Kit YGK2338 Differential, re gear, re-gear, LSD, limited slip differential, positraction, muscle car, GM, General Motors, Chevy, Chevrolet, Pontiac, Buick, Oldsmobile, Olds Kit contains a ring and pinion set, positraction unit, and installation parts 8.5" GM 3.90 REAR R&P GEAR/ INSTALL KIT PACKAGE with 28spl POSI and AK 1563 AXLE BRGS (2.25" OD) This kit dramatically improves traction and durability by adding a Yukon Dura Grip LSD and an upgraded ring and pinion set to your diff. It’s also an opportunity to generate next-level acceleration by moving to a more aggressive gear ratio. Fits GM 8.5” differential 30 spline pinion gear 3.90 ratio Coverage includes ’70 to ’81 Firebird Trans Am, ’70 to ’77 GTO, 25 other models, or anything hot-rodded with a GM 8.5” diff Includes Dura Grip positraction LSD, 28 spline 10 bolt ring gear 2.25" OD bearings Includes positraction unit, ring and pinion gear set, and all required bearings and installation hardware Yukon Muscle Car Limited Slip and Re-Gear Kit for GM 8.5”, 28 spline, 3.90 ratio, YGK2338 Yukon Muscle Car Limited Slip and Re-Gear Kit for GM 8.5”, 28 spline, 3.90 ratio