Rough Country · Authorized Dealer
4 Inch Lift Kit | At4/trailboss | M1/m1 | Chevy/gmc Sierra 1500 (19-24)/silverado 1500 (19-24)
$2,089.95
Price does not include installation.
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$2,089.95
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🛠️ Install available in Marietta, GA
Installed and serviced at Road Runner Wheels & Tires — 1585 Roswell Rd, Marietta, GA 30062. Call (678) 400-6467 to schedule.
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Built for AT4 and Trailboss owners who want commanding stance and serious tire clearance, this 4-inch suspension lift kit raises your Sierra 1500 or Silverado 1500 front and rear while preserving factory ride quality and geometry. You'll gain enough clearance for 33"–35" tires on properly-spaced wheels, plus integrated skid-plate protection and cast-steel knuckles engineered to handle both highway and trail.
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
- Front and rear suspension knuckles (cast steel) — precision-engineered for durability and optimal geometry retention; no factory disassembly required.
- Front and rear crossmembers — high-clearance design maintains suspension performance and track width.
- Front skid plate — shields the chassis and undercarriage during off-road use.
- M1 loaded strut pair (6-inch) — fully valved nitrogen-charged shocks tuned for balanced on and off-road handling.
- M1 monotube shock pair — rear dampers matched to the front struts for consistent suspension response.
- Precision laser-cut fabricated components — stronger and longer-lasting than cast alternatives.
Important notes
- Does NOT fit GMC Denali models equipped with Magnetic Ride Control.
- Does NOT fit 2019 "Classic" models (2018 body style) — only compatible with Trailboss and AT4 trim levels.
- Does NOT fit diesel-engine models.
- Requires cutting and drilling during installation.
- Does NOT fit OEM 20-inch factory wheels — aftermarket wheels are required.
- Wheels must feature 4.5-inch backspacing; test fit before final purchase.
Why customers pick this at Road Runner
- Rough Country Lifetime Replacement Guarantee backed by local technicians you can call anytime.
- In-house alignment performed as part of every lift install — your truck leaves level and drivable.
- Experienced crew installs these kits weekly; most jobs wrap the same day.
- Precision geometry engineering preserves factory ride comfort while unlocking off-road capability.
Ready to build it? Call (678) 400-6467. Hablamos Español.
| Qty | Part | Part # |
|---|---|---|
| 1 | 6in Kit Dr Knuckle Box | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021) | 21730BOX5 |
| 1 | 6in Kit Ps Knuckle Box | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021) | 21730BOX6 |
| 1 | 6in Kit Crossmember Box | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021) | 217BOX11 |
| 1 | Universal Kit Box | Chevy Silverado 1500 (19-23) GMC Sierra 1500 (19-23) | 217BOX1A |
| 1 | FR Full Skid | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021) | 217BOX3 |
| 1 | M1 Loaded Strut Pair | 6 Inch | Chevy Silverado 1500 2WD/4WD (2019-2026) | 502067 |
| 1 | M1 MONOTUBE SHOCK PAIR | 770739P |
Features
- Lifts and levels the vehicle from front to rear
- High clearance crossmember design for optimal suspension geometry
- Includes cast knuckles for extreme durability
- Retains stock track width
- No strut disassembly required
- 100% precision laser cut materials using the latest computer aided design process.
- Fabricated blocks are stronger and offer a longer lifespan than cast blocks.
- Includes application valved N3 series shock absorbers which offer the best in balanced performance for on and off-road use.
| Years | Make | Model | Drive |
|---|---|---|---|
| 2019-2024 | Chevrolet | Silverado 1500 Custom Trail Boss | 4WD |
| 2019-2024 | Chevrolet | Silverado 1500 LT Trail Boss | 4WD |
| 2022 | Chevrolet | Silverado 1500 LTD Custom | 4WD |
| 2022 | Chevrolet | Silverado 1500 LTD Custom | RWD |
| 2022 | Chevrolet | Silverado 1500 LTD Custom Trail Boss | 4WD |
| 2022 | Chevrolet | Silverado 1500 LTD High Country | 4WD |
| 2022 | Chevrolet | Silverado 1500 LTD High Country | RWD |
| 2022 | Chevrolet | Silverado 1500 LTD LT | 4WD |
| 2022 | Chevrolet | Silverado 1500 LTD LT | RWD |
| 2022 | Chevrolet | Silverado 1500 LTD LT Trail Boss | 4WD |
| 2022 | Chevrolet | Silverado 1500 LTD LTZ | 4WD |
| 2022 | Chevrolet | Silverado 1500 LTD LTZ | RWD |
| 2022 | Chevrolet | Silverado 1500 LTD RST | 4WD |
| 2022 | Chevrolet | Silverado 1500 LTD RST | RWD |
| 2022 | Chevrolet | Silverado 1500 LTD SSV | 4WD |
| 2022 | Chevrolet | Silverado 1500 LTD SSV | RWD |
| 2022 | Chevrolet | Silverado 1500 LTD WT | 4WD |
| 2022 | Chevrolet | Silverado 1500 LTD WT | RWD |
| 2019-2024 | GMC | Sierra 1500 AT4 | 4WD |
| 2022 | GMC | Sierra 1500 Limited AT4 | 4WD |
| 2022 | GMC | Sierra 1500 Limited Elevation | 4WD |
| 2022 | GMC | Sierra 1500 Limited Elevation | RWD |
| 2022 | GMC | Sierra 1500 Limited Pro | 4WD |
| 2022 | GMC | Sierra 1500 Limited Pro | RWD |
| 2022 | GMC | Sierra 1500 Limited SLE | 4WD |
| 2022 | GMC | Sierra 1500 Limited SLE | RWD |
| 2022 | GMC | Sierra 1500 Limited SLT | 4WD |
| 2022 | GMC | Sierra 1500 Limited SLT | RWD |
- Tire size: 33″ to 35″ tall
- Lift height: 4″
Does NOT fit GMC Denali models with Magnetic Ride Control. Does NOT fit 2019 "Classic" models (2018 body style) ONLY fits Trailboss & AT4 models Requires cutting and drilling. // Tire & Wheel Details \\\\ Does NOT fit factory wheels 20-inch or larger aftermarket wheels are required. Wheels must feature 4.5in backspacing to fit Please test fit wheels prior to installation Does NOT fit diesel engine models.
Rough Country Lifetime Replacement Warranty covers all structural components against defects in materials and workmanship for the original purchaser's lifetime ownership of the vehicle.
3-Year Finish Warranty on all painted and powder-coated surfaces.
3-Year Shock Warranty on N3, M1, and Vertex shocks against leakage and structural failure.
Warranty service is handled by Rough Country directly — call (678) 400-6467 if you need help opening a warranty claim and we'll walk you through it.
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