🚀 Just Launched - FASS System Motor Heatsinks

Monitor your FASS Fuel Filter Life with FASS Connect!

This Item Ships FAST

CST  |  SKU: CSK-G15-2

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

Regular price USD 4,43179

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?

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?

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?

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

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 2 builds on the base kit by adding CST Dirt-Series 2.0 reservoir rear shocks (the front continues to use the factory O.E. shocks).

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, heavy-duty 3/4" zinc-plated U-bolts, and a pair of CST Dirt-Series 2.0 reservoir rear shocks.

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 37x12.50 / 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:

  • Front continues to use the factory O.E. shocks; upgrade front shock packages available (see Stage 3+).
  • Rear Dirt-Series 2.0 reservoir shocks are included with this stage.
  • 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: front shock brackets (CSS-C33-4 single / CSS-C5-7 dual) with CST Dirt-Series 2.0 reservoir front shocks (CSA-6521 / CSA-6522), 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).