AMC Model 20 Rear Axle Shaft O.E Style Two Piece Replacement Axle Shaft; AMC Model 20; 29 Spline; 5 on 5.5in. Bolt Pattern; 28.562in. Overall Length; Driver Side; Does NOT Include Bearings Seals Or Studs; For Use In 76-83 Jeep CJ Quadratrac; O.E Style JEEP CJ7 SCRAMBLER BASE 1982 1983 1984 1985 1986 2.5L (151) 2.5L (150) 4.2L (258) GAS Alloy USA Alloy USA AMC Model 20 Rear Axle Shaft - 21135 21135 Replacement Axle Shafts