2001-2010 GMC Sierra 1500HD 2WD 4WD Rear Lift Blocks with Premium Forged Flat Top U-Bolts Double Sheer Mounts Center Bore: 130mm

Center Bore: 130mm

We also recommend using a Coil Spring Compressor for easy removal and reinstallation of your coil springs

while the flat top design increases contact mating area with leaf springs

**Aftermarket Uniball UCA is highly recommended on 2019+ models when front lift is higher than 2

Front Shocks are compatible with Torsion Bar set up ONLY

2001-2010 GMC Sierra 1500HD 2WD 4WD Rear Lift Blocks with Premium Forged Flat Top U-Bolts Double Sheer Mounts Center Bore: 130mm2x Rear Lift Blocks with 9 16" Single Pin 4x Premium Forged Flat Top U Bolts Installation Hardware Notes: Will fit 8 Lug Models Only. Please check you rear suspension setup before ordering. We are proud to introduce our New Heavy Duty Steel Lift Blocks, precision engineered by our experts not only to lift your truck but to improve your ride quality and comfort as well as lifetime use. The 1" Heavy Duty Steel Blocks are constructed from one solid block