8.2 Inch GM 3.55 Rear Ring & Pinion, Install Kit, 28Spl Posi, 2.25 Inch Axle Bearing USA Standard GearUSA Standard 8. 2 inch GM, 3. 55 Ratio Rear Ring and Pinion Gear Set and Master Install Kit Package, with 28 Spline Yukon Dura Grip Limited Slip Positraction, and 2. 25 inch OD Axle Bearings and Seals Details: Rear Differential 8. 2 inch GM Gear Ratio 3. 55 Location Rear Structured Ring and Pinion Install Kit Spline 28 Spline Positraction Yes Warranty Warrantied against manufacturing defects for one (1) year Sold As Kit Features: This particular kit