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

11.5in. cases and spiders came in two different sizes; with large and small hub sizes on the side gears. Small hub diameter is 1.816in. and came in 07/down GM differentials. Large hub diameter is 2.060in. 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.This 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 HD LT 2007-2015 Chevrolet Silverado 2500 HD LTZ 2003-2015 Chevrolet Silverado 25