Heavy Duty Axle Shims for GMC Models K2500 Up to 4" of Lift

Up to 4" of Lift can be achieved by adjusting OEM Shock Preload Settings

s factory shock absorbers to avoid the need to purchase expensive aftermarket extended shocks

2x Rear Add a Leaf Springs

Supreme Suspensions® Infiniti J30 Wheel Spacers

Heavy Duty Axle Shims for GMC Models K2500 Up to 4" of Lift2x Tapered Alignment Shims Installation Instructions Our differential shim kit has been specially engineered to help correct the pinion angle of your vehicle back to factory specifications. An incorrect pinion angle can cause driveline vibrations when driving at speeds, and will severely shorten the lifespan of the differential pinion bearing. CNC machined from billet aircraft aluminum, these are designed to never compress or change angle. They are