CST 6-8" Stage 5 Suspension System — 11-19 Chevy / GMC HD 2500HD/3500HD 2WD/4WD

6–8" of adjustable front lift on a one-piece subframe — for 2011–2019 Chevy Silverado / GMC Sierra 2500HD, 3500 & 3500 Dually (2WD & 4WD). Trophy-truck-derived geometry that keeps full factory track width and zero StabiliTrak issues.

What this stage includes

• One-piece gusseted subframe with a full-size steel diff skid plate
• Fabricated CNC-machined steel steering knuckles
• Heim-supported steering drop center-link
• Diff-drop, bump-stop, brake-line, and torsion X-member drop brackets
• Extended sway-bar end links and built-in stabilizer brackets
• Fabricated 4" rear lift blocks with HD zinc-plated U-bolts and all hardware
• Plus four CST DIRT-Series 2.0 remote-reservoir shocks (front and rear)

Why CST

• True 6–8" of adjustable lift, set via the factory torsion bars
• Retains factory O.E. geometry and full track width — no StabiliTrak issues
• 1/4"+ steel, built in-house by CST in the USA — no cutting or welding, reversible to stock
• Clears 35" tires, or 37x12.50/13.50 with minor trimming at 8"

Good to know

• Torsion keys required to reach the full 8" of lift
• May require a carrier-bearing drop
• Fits 3500/Dually; may need longer U-bolts
• Wheel backspacing: 17–18" — 5.25"; 20"+ — 5.75"
• Professional installation and alignment recommended