This premium 6″ lift kit for the 2020–2024 Chevy Silverado 3500HD and GMC Sierra 3500HD (4WD) is engineered to elevate the truck’s off-road capability while maintaining a smooth, comfortable highway ride. Designed to retain the factory load-carrying capacity, it is an ideal solution for owners who tow, haul, or require dependable performance in demanding work and recreational conditions.
At the core of this lift system is Fabtech’s innovative RTS® design. This advanced bracket system keeps the torsion bars in their original factory location, delivering lift without compromising ground clearance. By eliminating low-hanging torsion bars, the kit reduces the risk of snagging or damage on rough terrain and contributes to a cleaner, more streamlined appearance beneath the vehicle.
A major component of this GM 3500HD lift kit is the set of heavy-duty lower control arm crossmembers. These crossmembers are arched at the bottom to maximize ground clearance and include a skid plate that shields the front differential from rocks and trail obstacles. With construction from 1/4″ thick steel, the crossmembers and supporting bracketry provide exceptional strength and rigidity for long-term suspension durability.
The precision design of the kit allows for a quicker installation with only four drilled holes required and no cutting of the front differential housing. This thoughtful engineering maintains factory integrity while ensuring a secure, reliable fit.
Engineered with premium materials and built for lasting performance, this Fabtech lift kit offers years of trouble-free service along with an improved ride quality and enhanced off-road capability for the Sierra and Silverado 3500HD platforms.
CROSSMEMBERS
1/4″ thick steel lower control arm Crossmembers are arched for maximum ground clearance. The welded box design of these Crossmembers provides additional strength to the front suspension. Retains factory alignment cams for easy adjustment.
STEERING KNUCKLES
Fabtech’s extended length ductile iron Steering Knuckles provide zero bump steer throughout the suspension travel. This provides an enhanced driver experience compared to stock. Near stock track width keeps the tires under the fenders for a clean appearance.
TIE RODS
Oversized tie rods are provided to replace the stock units that are designed to handle oversized tires.
SKID PLATE
A heavy duty front differential Skid Plate is constructed of 1/4″ thick steel to protect the diff from offroad obstacles.
DIFFERENTIAL MOUNTS
Heavy duty Differential Mounts properly reposition the front diff for the precise CV and driveshaft angle to reduce driveline vibration at high speed.
SWAY BAR MOUNTS
Heavy duty mounts reposition the front sway bar for on road functionality and no bind for offroad use.
Front & REAR BUMP STOP SPACERS
Steel brackets relocate the 4 front and 2 rear compression stops to align with the factory closed cell bump stops to control the travel and eliminate over cycling of the suspension.
REAR LIFT BLOCKS
4″ tall rear lift blocks replace the factory blocks for additional lift without changing the ride quality or load carrying capacity. This block height helps level the truck front to rear.
REAR U-BOLTS
U-Bolts designed to attach the entire rear differential to the vehicle. A critical part that demands the best quality for your vehicle.
Dirt Logic 2.25 Shocks
The stainless steel body with NitroSteel piston rod provides maximum corrosion resistance and durability. High quality componentry delivers a superior ride quality both on and offroad. Excellent damping for offroad use.
