Heavy Duty Axle Shims for Chevy Models Sierra 1500HD 2x Rear Shock Mount Extenders

2x Rear Shock Mount Extenders

These are machined from the same material stock as our Pro-Billet series of products so you can be sure they're strong

5" U-Bolts

We have a talented group of in-house designers who dedicate their time to create the custom shirts you see

Heavy Duty Axle Shims for Chevy Models Sierra 1500HD 2x Rear Shock Mount Extenders2x 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