CST 8" STL Stage 5 Suspension System — 20-25 Chevy / GMC HD 2500HD/3500HD 2WD/4WD

A true 8" of lift on a one-piece subframe — no CV spacers, no cutting — for 2020–2025 Chevy Silverado / GMC Sierra 2500HD, 3500 & 3500 Dually (2WD & 4WD). High-clearance, StabiliTrak-approved, and fully reversible to stock.

What this stage includes

• One-piece high-clearance subframe with fully-boxed diff-drop X-member
• Laser-cut, hand-fabricated welded front spindles
• CST center-link with heim supports and a steel lower diff skid plate
• CST soft-ride rear leaf springs and HD rear U-bolt kit
• All mounting hardware
• Plus CST 2.5 PRO-Series adjustable shocks (reservoir front, piggyback rear, CDA)
• Plus boxed ball-joint upper control arms — the full build

Why CST

• TRUE 8" lift with no CV spacers needed
• 1/4"+ steel, built in-house by CST in the USA — no welding, reversible to stock
• Minimal track-width change and StabiliTrak-approved
• Clears up to 40" tires

Good to know

• Soft-ride rear leaf springs are not built for towing — add air bags for any load
• 4WD requires the CST front CV driveshaft (CSP-C28-8)
• Max wheel backspacing: 5"
• Professional installation and alignment recommended