GM 11.5in. AAM 14 Bolt 3.42 O.E.M. Ratio Will Fit Chrysler 11.5in.;For Use Will All Ratio Carriers;10 Year Warranty;Computer Heat Treated 8620 Steel;Manufactured To O.E. Specifications;Double Shot Peened;Double Lapped G2 Axle and Gear G2 GM 11.5 Inch AAM 14 Bolt 3.42 O.E.M. Ratio Ring and Pinion - 1-2024-342 1-2024-342 Ring and Pinions