2000-2010 Chevy Silverado HD Rear Suspension Lift Blocks & Extended U Bolts 2WD 4WD Torsion Keys It's high crystalline composition provides

It's high crystalline composition provides superior strength along with enough flex to maintain your stock ride quality

This ensures that the spring will not sag

Studs: 1/2"x20

and 3" Front and 1

while absolutely maintaining your smooth factory ride quality

2000-2010 Chevy Silverado HD Rear Suspension Lift Blocks & Extended U Bolts 2WD 4WD Torsion Keys It's high crystalline composition provides2x Rear Billet Lift Blocks Anodized Black 4x Premium Electrostatic Powder Coated U Bolts Installation Instructions FITS: 8 Lug Models Only, 2000 2010 Chevy Silverado 2500HD 3500HD Our Pro Billet Series rear lift kits are precision engineered to lift and level your truck. The rear lift blocks are machined from 6061 T6 aircraft aluminum, then an anodized coating is applied to protect from rusting. Unlike steel blocks that are cut out and welded