7.5 Inch Lift Kit | Torsion Drop | M1 | Chevy/gmc 2500hd/3500hd (11-19)

Built for Chevy and GMC 2500HD/3500HD owners who want commanding ground clearance without sacrificing ride quality, this 7.5" Torsion Drop Lift Kit preserves factory suspension geometry and keeps your truck feeling planted on the road. The innovative torsion drop design improves handling while maintaining driveline angles, and supports 37"–40" tires for serious off-road capability.

Installed and serviced at Road Runner Wheels & Tires. Most lift kits go in the same day. Call (678) 400-6467 to schedule.

What's included

• Crossmember Box — Laser-cut 1/4" thick steel crossmember, powder-coated in Hammer Black to match factory components and provide structural support for the lift system.
• 5–7" Lift Kit Box — Core lift components engineered to deliver the full 7.5" raise while preserving stock geometry and ride feel.
• 7" Torsion Bar Drop Kit Box — Precision-machined torsion bar drop brackets that improve suspension articulation and ride quality.
• Driver and Passenger Knuckles — Factory-replacement steering knuckles that maintain proper caster and camber angles for predictable handling.
• 253X Kit Box — Additional geometry-correction components ensuring no track-width change and factory-like steering response.
• M1 Monotube Shock Pair (Front and Rear) — Nitrogen-charged monotube shocks tuned to work seamlessly with the torsion drop design for improved damping and ride control.

Important notes

• Does NOT work with factory wheels. Models equipped with factory 17-inch wheels must use 17-inch or larger aftermarket wheels due to larger calipers and rotors.
• Kit does NOT fit dually models due to variances in u-bolt design.
• Factory rear overload springs must be removed on equipped models.
• Gas models may require exhaust modification for driveshaft clearance.
• Requires minor cutting and drilling during installation. A torsion bar removal tool (RC item 1067) is recommended for ease of installation.

Why customers pick this at Road Runner

• Maintains factory ride quality and track width — your truck handles like stock, just higher and more capable.
• No differential drilling or invasive drivetrain modifications — preserves your truck's integrity while delivering the lift.
• Professionally installed by techs who service these kits every week — done right, same day.
• Alignment performed in-house as part of every lift install — ensures proper geometry after your lift goes in.
• Rough Country lifetime warranty backed by Road Runner — we stand behind the kit long after you drive off the lot.
• Shock options tailored to your needs — from N3 nitrogen to Vertex adjustable, we configure it during your install quote.

Ready to build it? Call (678) 400-6467. Hablamos Español.