GM 8.2in. 17 Spline Drop Out Style Pro Series Limited Slip For Use With 17 Spline Axles;For Use With 3.70 And Down Gears;Aggressively Preloaded Cone Style Clutch System;Smooth Street Operation; Hardened Spider Gears;4 Year Replacement Warranty CHEVROLET EL CAMINO BASE 1959 1960 1964 3.2L (194) 3.8L (230) 3.8L (235) 4.6L (283) GAS Auburn Gear Auburn Gear GM 8.2 Inch 17 Spline Drop Out Style Pro Series Limited Slip Differential - 5420100 5420100 Differentials