FOX 2.5 Coil-Over Shocks w/ DSC Reservoir Adjuster - 4.5 Inch Lift - Factory Series - Chevy Silverado and GMC Sierra 2500HD/3500HD (01-10) 4WD FOX88406187

Coil-over shocks provide suspension damping and suspend the weight of the vehicle. The integrated coil spring can be adjusted for preload and ride height and come pre-set to level your vehicle right out of the box. The DSC adjuster adds remarkable versatility and precise tuning with a simple twist of either two adjuster knobs offering 10 separate low-speed and 12 high-speed compression levels with a black anodized aluminum reservoir to increase cooling efficiency.