Cognito 210-90467 3-DEG Rear Pinion Shim Kit for 99-18 Silverado/Sierra 1500

3 Degree Rear Pinion Angle Shim Kit 99-18 GM 1500/01-10 GM HD/01-13 2500 SUV 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 Inch rear lift that has no pinion angle change such as spring Only or straight block. 3 Degree Rear Pinion Angle Shim Kit for 99-18 Silverado/Sierra 1500 Trucks Angle Degree: 3 Degrees Drive: 2WD/4WD Location: Rear