CST 4-6" STL High-Clearance Lift Kit (All Stages) — 11-19 Chevy / GMC HD 2500HD/3500HD 2WD/4WD
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 at636-429-7020or 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 at636-429-7020and we’ll confirm current availability or estimated ship dates.
Description
Description
A true 4" of high-clearance lift in the stock torsion location — up to 6" with torsion keys — for 2011–2019 Chevy Silverado / GMC Sierra 2500HD, 3500 & 3500 Dually (2WD & 4WD). Maximum ground clearance while keeping the stock ride and handling. Pick your stage from the dropdown to set the shock package.
What every stage includes
- Gusseted, fully-boxed high-clearance cross-members with a full-size steel diff skid plate
- US-made cast-iron CNC-machined steering knuckles
- Diff-drop, bump-stop, and brake-line drop brackets
- Extended sway-bar end links and built-in stabilizer brackets
- O.E. front shock relocator/adapter brackets (reuse factory shocks at base)
- Billet 1" rear lift blocks, HD zinc-plated U-bolts, and all hardware
Choosing your stage
- Stage 1 — base lift; reuses your factory front shocks (rear shocks sold separately)
- As you climb the stages, the shock package steps up — CST DIRT-Series 2.0 (rear, then front and rear), then DIRT-Series 2.0 remote-reservoir, up to PRO-Series 2.5 adjustable shocks with compression-damping adjusters
- “Ball Joint UCA” options swap the uniball upper control arms for boxed ball-joint UCAs with quiet OE-style bushings
Why CST
- TRUE 4" lift without dropping the factory torsion cross-member
- Near-factory track width and StabiliTrak-approved
- 1/4"+ steel, built in-house by CST in the USA — no cutting or welding, reversible to stock
Good to know
- Torsion keys required for 5–6" of lift; added rear lift needed for a level stance once keys are in
- Longer shocks may be required above 4" (available from CST)
- Fits 3500/Dually; may need longer U-bolts with overload springs
- Wheel backspacing: 17–18" — 5"; 20"+ — 5.5"
- Professional installation and alignment recommended
