6 Inch Lift Kit | Mono Leaf Rear | Vertex | Gmc Sierra 1500 2wd/4wd (25-26)

Built for GMC Sierra 1500 owners who want commanding height and aggressive stance without sacrificing suspension geometry, this 6-inch Rough Country lift kit raises your truck from front to rear while preserving factory-like suspension angles. The kit uses durable steel knuckles, drop cross members, and rear blocks to maintain ideal geometry — and it clears up to 37-inch tires without modification.

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

• Universal Kit Box | Mono Leaf Rear — Rear suspension foundation for the 6-inch lift, engineered to work with Rough Country's modular shock options.
• 6-inch Kit Driver & Passenger Knuckle Boxes — Cast knuckles designed to reduce CV angles and simulate factory geometry angles at the front axle.
• 6-inch Kit Crossmember Box — Drop cross member that maintains suspension geometry while gaining 6 inches of height.
• Front Full Skid Plate — Heavy-duty underbody protection during off-road use.
• Vertex 2.5 Adjustable Front Shocks (pair) — Nitrogen-charged reservoir shocks with adjustable ride quality for the front axle.
• Vertex 2.5 Rear Shocks (pair) — Reservoir shocks matched to the rear lift geometry for balanced handling.

Important notes

• Requires cutting and drilling during installation.
• Does NOT fit Denali or Denali Ultimate models — they are equipped with Adaptive Ride Control.
• Does NOT fit AT4 or AT4X models — both equipped with factory 2-inch lifts (AT4X also has Multimatic DSSV dampers).
• Does NOT fit factory wheels. Wheels must be 20-inch or larger aftermarket with 4.5-inch backspacing. Some aftermarket wheels may require a 0.25-inch wheel spacer.
• Test fit wheels prior to installation.

Why customers pick this at Road Runner

• Factory-like suspension geometry preserved — steel knuckles, drop cross members, and matched shocks keep angles correct so your truck handles like it should.
• Rough Country lifetime warranty backed locally — full structural and workmanship coverage at Road Runner.
• Professionally installed by technicians who perform these lifts every week — ensures correct geometry, proper torque, and long service life.
• Alignment performed in-house after every lift install — corrects caster and camber on the spot, no follow-up trips needed.
• Configurable shock packages — choose from Vertex reservoir shocks (included) or upgrade to N3 nitrogen-charged options to suit your terrain and comfort preference.

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