6 Inch Lift Kit | Mono Leaf Rear | N3 | Gmc Sierra 1500 2wd/4wd (2025-2026)

Built for GMC Sierra 1500 owners who want an aggressive stance without sacrificing ride quality, this 6-inch lift kit combines durable steel knuckles, drop crossmembers, and carefully engineered suspension geometry to preserve factory-like handling while adding commanding height. You'll gain clearance for 35–37 inch tires and retain stock track width for proper alignment and stability.

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 — The foundation of the rear lift system, engineered to work seamlessly across compatible platforms.
• 6in Kit Driver & Passenger Knuckle Boxes — Heavy-duty cast knuckles that maintain ideal suspension geometry and reduce CV angles to simulate factory suspension travel.
• 6in Kit Crossmember — Drop crossmember design that preserves suspension geometry while delivering the full 6-inch lift height.
• Front Full Skid Plate — Protects underbody components during off-road use.
• 6in Front Kit Box — Upper strut spacers and front lift components for uncompromised strength and rigidity.
• N3 Shock Pair — Nitrogen-charged shocks tuned to complement the new suspension geometry and ride height.
• Rear Blocks, U-Bolts, and Shocks — Complete rear suspension hardware that allows you to retain factory-like geometry.

Important notes

• Requires cutting and drilling. Strut compressor required for installation.
• Does NOT fit Denali or Denali Ultimate models equipped with Adaptive Ride Control.
• Does NOT fit AT4 or AT4X models — both are equipped with a 2-inch factory lift and are incompatible with this kit.
• Does NOT fit factory wheels. You must use 20-inch or larger aftermarket wheels with a minimum of 4.5 inches of backspacing. Some wheels may require a 0.25 inch wheel spacer (#1065). Test fit wheels prior to installation.

Why customers pick this at Road Runner

• Suspension geometry engineered to preserve factory-like handling — drop crossmembers and cast knuckles reduce CV angles so your truck drives like it was born at 6 inches.
• Rough Country's limited lifetime replacement warranty backed by local service — if anything fails due to manufacturer defect, we replace it.
• Professionally installed by technicians who perform these lifts every week — precision matters when geometry is on the line.
• Professional alignment performed in-house after your lift install — ensures tire wear is even and your truck tracks straight.
• Tire and wheel guidance — we'll help you pick the right setup (35–37 inches) and verify fitment before you drive off.

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