Fabtech
Fabtech K1128 3-Inch Ball Joint UCA Lift Kit for 2019-2024 Sierra 1500 Denali 4WD with Factory Adaptive Ride Control
Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.
Eligible returns within 30 days of receipt. Items must be unused, with tags and original packaging. Contact Lee Mods before sending anything back. Lee Mods pays return shipping for eligible U.S. returns; no restocking fee. See Returns & Exchanges for full conditions.
One complete Fabtech K1128 3-inch Ball Joint upper control arm suspension lift system.
Vehicle application
For 2019-2024 new-body GMC Sierra 1500 Denali pickups, 4WD, with a gasoline V8 engine, factory Adaptive Ride Control and steel rear leaf springs.
Excludes 2WD, diesel, four-cylinder engines, standard-cab trucks, composite rear leaf springs, GMC AT4, Chevrolet Trail Boss, vehicles equipped with Super Cruise and 2019 Sierra Limited models. Chevrolet trucks, other GMC trims and Denali Ultimate applications are not covered by this listing.
Package
One FTS21248 component package includes driver and passenger FT20833/FT20834 upper control arms and two FT20619 ball joints, two FT20801 front coilover spacers, two FTBK15 1.5-inch rear blocks, four FT1500U U-bolts, bushings, control arm spacers and installation hardware.
Also includes one FTS21253 Adaptive Ride Control Spacer Kit with two FT20832 spring-perch spacers, two FT20673BK rear shock extension brackets and hardware. The ARC spring-perch spacers are used in place of the standard FT20835 spacers. This system retains both factory Adaptive Ride Control front coilovers and rear shocks; replacement shock absorbers are not included.
The complete system provides 3 inches of lift; the rear blocks are 1.5 inches. Differential drop brackets are not included.
Wheels and installation
Aftermarket wheels are required; factory wheels and tires cannot be used. Fabtech lists 33/12.50R18 or 295/65R18 tires on 18x9 wheels, or 33/12.50R20 or 295/55R20 tires on 20x9 wheels, each with 5-inch backspacing and minor trimming. Wheels and tires are not included; confirm clearance on the exact vehicle.
Mounted vehicle photos are illustrative. The vehicle, wheels, tires and other accessories shown are not included and do not establish fitment.
Professional installation and alignment are required. Read the Fabtech FT21248 instructions and the exact package list before ordering and installation.
WARNING: Cancer and Reproductive Harm-www.P65Warnings.ca.gov.
Your vehicle
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Manufacturer & part identification
Fabtech
| Option | SKU / part reference |
|---|---|
| Standard | K1128 |
Vehicle compatibility
Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.
Request fitment help →Installation & specifications
Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.
Shipping expectations
Processing and delivery vary by product, supplier and destination. Contact us to confirm timing for your part before planning an installation.
Shipping & delivery informationManufacturer warranty
Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.
Warranty information