4″ Lift Kit – Dirt Logic 2.25 Shocks – K1202DL

SKU: K1202DL Category: Tags: ,



2020-24 Chevy Silverado 3500HD | GMC Sierra 3500HD 4WD

Fabtech’s world renowned IFS suspension design for the GM 3500HD provides excellent drive ability both on and offroad. There is zero bump steer throughout the suspension cycle that helps reduce drive fatigue while improving the overall driveability of the vehicle.

The near stock track width keeps the tires under the fenders for a clean appearance. Fabtech’s proprietary steering knuckle geometry provides excellent lock to lock turning radius to maneuver in tight spots.

Heavy duty 1/4″ thick steel crossmembers feature eccentric style alignment cams for easy adjustment. Triple front diff mounts reposition the differential for vibration free operation at high speed.

Fabtech offers their top of the line Dirt Logic 2.25 shocks with this 3500HD lift kit. They are constructed with a stainless steel body and a NitroSteel® piston rod for maximum corrosion resistance and durability. These high quality Dirt Logic shocks will provide a superior ride quality both on and offroad with excellent damping for offroad use.

Fabtech has addressed all aspects of the suspension for proper wheel travel and lock to lock steering without over cycling. Comes with a free 5 year 60,000 mile Powertrain Warranty.


  • Zero bump steer throughout travel range for optimum driveability
  • Front differential driveline angled for smooth high speed 4WD operation
  • Near factory track width keeping tires under fenders for clean appearance
  • Fast installation with heavy duty 1/4” thick steel construction throughout
  • Free 5 Year 60,000 Mile Powertrain Warranty


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.


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.


Oversized tie rods are provided to replace the stock units that are designed to handle oversized tires.


A heavy duty front differential Skid Plate is constructed of 1/4" thick steel to protect the diff from offroad obstacles.


Heavy duty Differential Mounts properly reposition the front diff for the precise CV and driveshaft angle to reduce driveline vibration at high speed.


Heavy duty mounts reposition the front sway bar for on road functionality and no bind for offroad use.


New 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.


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 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.

Part Numbers

Qty Part # Description
1 FTS21294 Component Box
1 FTS21295 Component Box
1 FTS21297 Component Box
2 FTS81168 Front Dirt Logic 2.25 Shocks
2 FTS81169 Rear Dirt Logic 2.25 Shocks

  –  California Prop 65 Warning

    14. Can not use OEM wheel and tire.
    20. Does not fit standard cab models.