CST 6-8″ Stage 1 Suspension System — 11-19 Chevy / GMC HD 2500HD/3500HD 2WD/4WD

Description

CST’s 6-8″ adjustable front suspension system for 2011-2019 Chevy Silverado / GMC Sierra 2500HD, 3500 & 3500 Dually trucks (2WD & 4WD). Engineered with CST’s trophy-truck-derived geometry and built in the USA, it retains factory O.E. suspension geometry and full factory track width for a stock-quality ride with zero GM StabiliTrak issues. No cutting and no welding required, and the truck can be returned to stock. Stage 1 is the foundation build — it reuses the factory front shocks; rear shocks are required and sold separately.

Front kit includes:

• One-piece gusseted sub-frame with full-size steel differential skid plate
• Fabricated, CNC-machined steel front steering knuckles
• High-strength steering drop center-link with heim-jointed support links (reduces wear on the factory idler and pitman arms)
• Differential drop brackets
• Heavy-duty bump-stop brackets
• Extended sway-bar end links
• Brake-line drop brackets
• CST laser-cut torsion x-member drop brackets
• Built-in steering-stabilizer brackets (stabilizer shock optional)
• O.E. front shock extensions and all necessary hardware

Rear kit includes: fabricated 4″ lift blocks with bump-stop pads and heavy-duty 3/4″ zinc-plated U-bolts.

Features:

• 6-8″ adjustable lift height (set via factory torsion-bar adjustment)
• Constructed of 1/4″ or thicker steel for added strength
• Two-stage gloss-black powder-coat finish
• Retains factory track width — no StabiliTrak issues
• Clears 35″ tires, or 37×12.50 / 13.50 with minor trimming (must be set to 8″ of lift)
• Improved ride quality, ground clearance and tire clearance
• Made in the U.S.A.

Fitment & notes:

• Stage 1 reuses the factory front O.E. shocks.
• Rear shocks are required and sold separately.
• May require a carrier-bearing drop.
• Fits 3500/Dually trucks but may require custom/longer U-bolts.
• Wheel backspacing: 17″ wheels — 5.25″ max; 20″ or larger — 5.75″ max.
• Professional installation and a post-install alignment are recommended.

Recommended upgrades: CST Dirt-Series 2.0 reservoir front shocks (CSA-6521) with single or dual shock brackets, Dirt-Series 2.0 reservoir rear shock (CSA-6526), uniball or ball-joint upper control arms, extreme-duty tie rods (CSS-C24-18), aluminum skid plate (CSS-C29-15), CV front driveshaft (CSP-C28-1, requires shift-linkage bracket), and CST steering stabilizer (CSR-2946).