4 Degree Rear Pinion Angle Shim Kit (GM)

4 degree rear pinion angle shim kit for 1999-2018 Chevrolet and GMC 1500 trucks, 2001-2010 GM 1500HD / 2500 / 2500HD / 3500 / 3500HD 2WD/4WD trucks and 2001-2013 GM 2500 2WD/4WD SUVs. Used with short wheel base trucks with tall lift where no tapered blocks were available. Includes 2 shims and 2 center pins to bolt shims to leaf packs. Use for single cab trucks or extended cab short bed, with 4-6” rear lift that has no pinion angle change such as spring only or straight block.