CST 4-6" STL Stage 3 Suspension System w/ Fox 2.0 IFP Shocks — 11-19 Chevy / GMC HD 2500HD/3500HD 2WD/4WD

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.

What this 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
• Billet 1" rear lift blocks, HD zinc-plated U-bolts, and all hardware
• Plus Fox 2.0 IFP front and rear shocks

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
• Fits 3500/Dually; may need longer U-bolts with overload springs
• Wheel backspacing: 17–18" — 5"; 20"+ — 5.5"
• Professional installation and alignment recommended