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Fabtech K1181M 3.5″ Uniball UCA Lift Kit With Stealth Shocks

2020-2024 Chevrolet Silverado 3500 HD 4WD 2020-2024 GMC Sierra 3500 HD 4WD
Fabtech K1181M 3.5″ Uniball UCA Lift Kit With Stealth Shocks
1760.89In stock
2020-2024 Chevrolet Silverado 3500 HD 4WD 2020-2024 GMC Sierra 3500 HD 4WD

Uniball UCA Lift System w/Shocks

  • Brand : Fabtech
  • SKU : BKBNK1181M
  • Part Number : K1181M
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Product Details

This high-quality 3.5" HD suspension lift kit is engineered for 2020-24 Chevrolet Silverado 3500HD and GMC Sierra 3500HD 4WD models, providing increased ride height for enthusiasts looking to run 35" tall tires with improved off-road capability. The system levels the vehicle from front to rear, delivering a more aggressive and commanding stance while maintaining confident on-road performance.

The factory upper control arms are replaced with Fabtech Uniball Upper Control Arms that provide increased wheel travel and an additional degree of caster compared to stock UCA’s. These arms are constructed from premium 1.50" OD 4130 Chromoly tubing with a .120" wall thickness, reducing flex and increasing strength for demanding off-road conditions.

High-quality 1" FK stainless steel PTFE-lined Uniball bearings replace traditional ball joints, offering superior durability, smooth articulation, and long service life in rugged environments. These heavy-duty control arms improve suspension strength while delivering a more precise and confident on-road feel.

Fabtech forged torsion bar keys replace the factory units, allowing additional ride height adjustment while working in conjunction with the upgraded upper control arms to maintain proper suspension geometry. The rear suspension is leveled using 2" rear lift blocks and U-bolts, helping retain ride quality and load-carrying capacity.

The system is completed with Fabtech Stealth shocks, featuring a sealed monotube design with a Nitrocarb piston rod for excellent corrosion resistance and protection against rock chipping. These shocks deliver a smooth highway ride with dependable off-road damping performance.

This 3.5" HD lift kit is built with high-quality components that enhance strength, reliability, and overall vehicle performance while giving the truck a bold, confident presence.

Obtain increased wheel travel and mild lift height with this heavy duty Upper Control Arm system. The tubular Upper Control Arms feature 1.25 OD. .120 wall thick chromoly tube construction with 1 diameter Stainless Stee

Uniball UCA Lift System w/Shocks; 3.5 in. Lift; w/Front And Rear Stealth Shocks; Incl. PN [FTS21275/FTS755/FTSBK21/FTS6341/FTS6019];;

Arms Eliminate Upper Ball Joint Arms Super Strong 1 in. ID Stainless American Uniball 17-4 Stainless Steel Heat Treated Uniball Pin Arms Are Direct Replacements For Factory Arms For Suspensions That Require Additional Strength/Alignability
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Fitment

YearsMakeModelDrive
2020-2024ChevroletSilverado 3500 HD4WD
2020-2024GMCSierra 3500 HD4WD

Features

  • Fabtech Uniball upper control arms eliminate factory upper ball joints using super-strong 1" ID stainless steel American Uniballs for increased suspension strength
  • Additional caster built into the control arms for improved alignment and handling with oversized tires
  • 1.50" OD .120" wall 4130 Chromoly tubing reduces flex found in stock arms for a more positive road feel
  • 17-4 heat-treated Uniball pin fits into the factory ball joint taper with no spindle modification for easy return to stock
  • 17-4 stainless steel misalignment spacers provide proper clearance for large Uniballs throughout the full travel range
  • Billet Uniball cap helps keep dirt and debris out for extended service life
  • .250" wall DOM bushing barrels with welded gussets for added strength and durability
  • Heavy-duty forged torsion bar keys for precise ride height adjustment
  • Fabtech Stealth monotube shocks with Nitrocarb piston rods for corrosion resistance and consistent damping
  • Includes a free 5-year / 60,000-mile powertrain warranty

Components

  • 1 × FTS21275 – Component Box
  • 1 × FTS755 – U-bolt Kit
  • 1 × FTSBK21 – Rear Block Kit
  • 2 × FTS6341 – Front Stealth Shocks
  • 2 × FTS6019 – Rear Stealth Shocks

STEALTH MONOTUBE SHOCK

Stealth is the first all black monotube shock absorber, with an identifiable raised metal nameplate that represents the signature of quality you can rely on for a superior ride at an affordable price.

Stealth monotube shocks are built with a 46mm diameter high flow piston and vehicle specific valving for a great ride with oversized tires.

All Stealth shock absorbers feature Nitrocarburized piston rods that are superior to chromed rods in durability and corrosion resistance. These Nitrocarb piston rods are finished in matte black for a complete blackout shock package.

  • 50mm OD seamless steel body
  • 46mm high flow piston for best ride
  • Vehicle specific valving designed for oversized tires
  • Full floating piston separates gas from oil for a consistent ride
  • 14mm Nitrocarb piston rod resists rock chips and rusting
  • All black finish with raised nameplate as a signature of quality

Quick Specs

  • Tire Size – 35/12.50R18 Wheel Size – 18×9 w/ 5 3/4in BS w/minor trimming
  • Tire Size – 35/12.50R20 Wheel Size – 20×9 w/ 5 3/4in BS w/minor trimming
  • Tire Size – 35/12.50R22 Wheel Size – 22×9 w/ 5 3/4in BS w/minor trimming
  • Part Number : K1181M

Important Notes

  • California Prop 65 Warning
  • 14. Can not use OEM wheel and tire.
  • 20. Does not fit standard cab models.
  • 199. Does not fit GMC AT4 or Chevy Trail Boss models.

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