Fabtech 25-26 Chevrolet Silverado 2500HD / GMC Sierra 2500HD 3.5" Uniball UCA Lift Kit with Dirt Logic 2.25 Shocks
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Description
Description
Upgrade your 2025-2026 Chevrolet Silverado 2500HD or GMC Sierra 2500HD 2WD/4WD with the Fabtech 3.5" Uniball UCA Lift Kit with Dirt Logic 2.25 Shocks. MPN: K1155DL. Built for enthusiasts looking to run up to 35" tires, this heavy-duty suspension system increases ride height, improves off-road performance, and provides a more aggressive stance with enhanced strength and reliability.
Why Choose the Fabtech 3.5" Uniball UCA Lift Kit?
- Heavy-Duty Uniball Upper Control Arms – Replaces factory upper ball joints with a stronger 1" stainless steel American Uniball design for increased suspension strength.
- 4130 Chromoly Construction – 1.50" OD .120" wall tubing reduces flex compared to factory arms for improved handling and durability.
- Increased Suspension Travel – Uniball upper control arms provide additional wheel travel for improved off-road capability.
- Improved Alignment Capability – Additional caster is built into the arms to help accommodate oversized tires.
- Dirt Logic 2.25 Shocks – Premium shocks feature stainless steel bodies and NitroSteel® piston rods for maximum corrosion resistance and durability.
- Heavy-Duty Torsion Bar Keys – Forged torsion bar keys provide additional ride height adjustment to complement the upgraded control arms.
- 5-Year / 60,000 Mile Powertrain Warranty – Includes Fabtech's free powertrain warranty.
Kit Includes
- Fabtech Uniball upper control arms
- Heavy-duty forged torsion bar keys
- Front Dirt Logic 2.25 shocks
- Rear Dirt Logic 2.25 shocks
Fits These Models
2025-2026 Chevrolet Silverado 2500HD 2WD/4WD
2025-2026 GMC Sierra 2500HD 2WD/4WD
Specifications
- Lift Height – 3.5"
- Upper Control Arm Tubing – 1.50" OD .120" wall 4130 Chromoly tubing
- Uniball Bearing – 1" FK Stainless PTFE lined Uniball bearing
- Uniball Pin – 17-4 heat treated Uniball pin fits factory ball joint taper without modification to the spindle
- Misalignments – 17-4 stainless steel misalignments for proper clearance of large Uniballs throughout suspension travel
- Bushing Barrels – .250 wall DOM bushing barrels with welded gussets
- Shock Construction – Dirt Logic 2.25 stainless steel shock bodies with NitroSteel® piston rods
Key Features at a Glance
- MPN: K1155DL – Complete 3.5" Uniball UCA suspension lift kit.
- 35" Tire Clearance – Designed for larger tires and improved off-road capability.
- American Uniball Design – Provides increased strength compared to factory upper ball joints.
- Dirt Logic 2.25 Shocks – Delivers excellent ride quality with dependable off-road damping.
- Billet Uniball Cap – Helps keep dirt and debris away from the Uniball assembly.
- Reinforced Construction – DOM bushing barrels with welded gussets provide additional strength.
Notes
- Fabtech Uniball upper control arms use a 17-4 heat treated Uniball pin that fits into the factory ball joint taper without modification to the spindle, allowing an easy return to stock configuration.
SKU: K1155DL
Questions? We’re Here to Help.
Have questions about upgrades for your Chevrolet Silverado 2500HD or GMC Sierra 2500HD? Contact FASS Motorsports and we’ll get you dialed:
Phone: 636-429-7020
Email: info@fassmotorsports.com
