Yukon Gear Standard Open Spider Gear Kit For 11.5in GM w/ 30 Spline Axles

11.5" cases and spiders came in two different sizes, with large and small hub sizes on the side gears. Small hub diameter is 1.816" and came in '07 & down GM differentials. Large hub diameter is 2.060" and came in '08 & up GM differentials and all Dodge differentials. This is a universal spider gear kit with adapters to fit either design. The early cross pin shaft included in the kit works with snap ring design carrier only.Installation InstructionsInstallation InstructionsInstallation InstructionsThis Part Fits: Year Make Model Submodel 2011-2013 Chevrolet Express 3500 Base 2011-2013 Chevrolet Express 3500 LS 2011-2013 Chevrolet Express 3500 LT 2001-2004 Chevrolet Silverado 2500 Base 2001-2004 Chevrolet Silverado 2500 LS 2001-2004 Chevrolet Silverado 2500 LT 2004 Chevrolet Silverado 2500 WT 2001-2005 Chevrolet Silverado 2500 HD Base 2015 Chevrolet Silverado 2500 HD High Country 2001-2006 Chevrolet Silverado 2500 HD LS 2001-2015 Chevrolet Silverado 2500 H