GM 7.5in. And 7.6in. 10 Bolt 28 Spline 3.23 Up Pro Series Limited Slip For Use With 28 Spline Axles;For Use With 3.23 And Up Gears;Aggressively Preloaded Cone Style Clutch System;Smooth Street Operation; Hardened Spider Gears;4 Year Replacement Warranty CHEVROLET GMC ISUZU OLDSMOBILE BRAVADA RODEO S10 BLAZER S10 PICKUP S15 JIMMY S15 PICKUP SONOMA SYCLONE BASE ENVOY GT LS SL TRAILBLAZER 1988 1989 1990 1991 1992 1993 1994 1995 1996 1999 2000 2001 2005 2.2L Vortec (134) 2.5L Iron Duke L38 (151) 2.5L Iron Duke LN8 (151) 2.6L (2559cc) 2.8L LL1 HO 3.1L (3137cc) 3.2L 6VD1 (3165cc) 4.3L L35 (262) Vortec 4.3L LB4 (262) Vortec GAS Auburn Gear Auburn Gear GM 7.5in. And 7.6in. 10 Bolt 28 Spline 3.23 Up Pro Series Limited Slip - 542046 542046 Differentials