6 Inch Lift Kit | Mono Leaf Rear | Diesel | Gmc Sierra 1500 2wd/4wd (19-24)

Built for GMC Sierra 1500 diesel owners who want an aggressive stance without compromise, this 6-inch lift kit raises and levels your truck while maintaining factory track width and handling. Rough Country engineered it to accept 35–37 inch tires on properly-spaced aftermarket wheels, delivering the ground clearance and presence you're after — all with a bolt-on install that skips strut disassembly and differential trimming.

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 Mono Leaf Rear Kit Box — The backbone of your rear suspension geometry, engineered for smooth ride quality and off-road capability.
• 6-Inch Driver and Passenger Knuckle Boxes — Cast knuckles that handle extreme duty loads while maintaining factory driveline angles.
• Diesel Front Suspension Kit Box — Precision components tuned for diesel engine weight and balance.
• 6-Inch Front and Rear Crossmembers — High-clearance designs that preserve optimal suspension geometry without trimming the differential.
• N3 Shock Pair — Nitrogen-charged shocks tuned for the lift, delivering responsive damping on street and trail.

Important notes

• Does not fit 2019 "Classic" (2018 body style) models, Denali or Denali Ultimate (equipped with Adaptive Ride Control), AT4 (factory 2-inch lift), or AT4X (factory 2-inch lift with Multimatic DSSV dampers).
• Diesel-specific: Rough Country's aftermarket replacement strut options do not work on diesel models due to motor weight variance. Use only the N3 shocks supplied with this kit.
• Wheels required: Does not fit factory wheels. You must use 20-inch or larger aftermarket wheels with 4.5-inch backspacing minimum. Test-fit your wheels before installation — some may require a 0.25-inch wheel spacer (SKU 1065).
• Installation requires cutting and drilling. No strut disassembly or differential trimming needed.

Why customers pick this at Road Runner

• Geometry corrected by Rough Country engineering — your truck handles like stock, not like a lifted truck.
• Professional alignment performed in-house after every lift install, included in your service.
• Rough Country Limited Lifetime Replacement Guarantee backed by a local dealer who knows your truck.
• Installed same day by techs who do these lifts every week — no guesswork, no surprises.

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