7.5 Inch/7.625 Inch GM 4.11 Rear Ring & Pinion, Install Kit, 2.25 Inch Od Axle Bearing USA Standard GearUSA Standard 7. 5 inch 7. 625 inch GM, 4. 11 Ratio Rear Ring and Pinion Gear Set and Master Install Kit Package, with 2. 25 inch OD Axle Bearings and Seals Details: Rear Differential 7. 5 7. 625 inch GM Gear Ratio 4. 11 Location Rear Structured Ring and Pinion Install Kit Axle Bearings and Seals Axle Bearings Over Drive 2. 25 inch Overdrive Warranty Warrantied against manufacturing defects for one (1) year Sold As Kit Features: This particular kit