FOX 2.5 Performance Elite Coil-OversDSC AdjustmentHD Control ArmsBDS is a game changer in the performance of your 2020+ Chevy Silverado and GMC Sierra 2500 / 3500 HD truck with a 3-inch suspension lift kit with FOX 2.5 Performance Elite Coil-Overconversion. Designed to improve stance performance and capability this kit includes everything necessary to set your truck up right with clearance for up to 35" tires. These kits feature proprietaryFOX 2.5 Performance Elite coil-over shocks designed specifically to bolt-on performance for increased travel and the ability to soak up the roughest terrain along with smooth on-road comfort.In addition to replacing the factory torsion bars the upper and lower control arms are upgraded to improve strength travel and accommodate the new coil-overs. The new upper control arms arefabricated from large 1.5" OD x .120-wall tubing fully TIG welded for the highest quality strength and durability. To compliment the uppers the new lower control arms are built from high strengthsteel fully boxed with internally gusseted.This kit takes principles on BDS's engineering standard for improved ground clearance strength and offroad protection while correcting suspension and steering geometry for great on-road handlingcharacteristics. Up front the kit utilizes FOX 2.5 coil-over shocks heavy duty tubular upper control arms fully boxed and gusseted lower control arms and multipiece differential relocation bracketsto maintain correct CV angles. These combined with the provided sway bar links supplied hardware and more provide a comprehensive front suspension lift ready for whatever you throw at it.In the rear BDS offers replacement lift blocks to lift and level that stance. The lift block installs in place of the stock block and retains ride quality and load capacity. Also for the rear is a u-bolt flip kitfor max clearance and precision tuned FOX 2.0 Performance Series or Performance Elite Series 2.5?? shocks for ultimate off road performance.FOX Performance Elite 2.5 coil-overs offer next level performance for on-road comfort and off-road comfort capability. Tuned and ready to install right out of the box these bolt-on 2.5-inch diametercoil-overs are built for abuse and packed with race-proven technology. They include a remote reservoir for additional fluid capacity to keep your shocks running cool so you can push the limits in therough terrain.FOX Performance Elite 2.5 coil-overs come standard with DSC (dual speed compression) adjustment to tune the high-speed and low-speed compression damping allowing for added control on-roadwith the ability to easily dial in more aggressive damping offroad. Tuning is a simple twist of the two clearly defined knobs with immediate feedback to dial it in for any terrain.Built for strength performance and increased travel these control arms are ready to bolt-in. The upper arms use 1.5" OD x .120-wall tubular construction with an indexed ball joint cup to correct theball joint positioning allowing additional down travel and camber adjustment. The new lower control arms are built from high strength steel fully boxed with internally gusseted. At the frame mountingends are durometer-specific rubber bushings for maintenance-free operation while at the other end a quality greaseable ball joints for smooth quiet operation and superior durability. Arms arefinished in a durable black powder coat with a billet aluminum dust cap ready for installation right out of the box. 2020-2024 GM 2500HD/3500 3" Coilover Conversion w/ Overload Springs 2.0 Rear Shocks