Rough Country · Authorized Dealer
4 Inch Lift Kit | At4/trailboss | Vertex/v2 | Chevy/gmc 1500 (25-26)
$2,859.95
Price does not include installation.
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$2,859.95
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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 a commanding presence both on and off the road, this 4-inch lift kit transforms your 2025–2026 Silverado 1500 or Sierra 1500 from the factory two-inch platform to genuine trail-ready height. It preserves suspension geometry through precision-engineered knuckles, differential brackets, and drop cross members — so your truck handles like it was born lifted. You'll run 33"–35" tires without modification and keep that factory-like ride quality Rough Country is known for.
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 — base frame and structural components.
- 6-inch Kit Knuckles (driver and passenger) — cast knuckles for extreme durability and precise caster correction.
- 6-inch Kit Crossmember — drop design that optimizes suspension angles while protecting undercarriage clearance.
- Front Full Skid Plate — shield for engine bay and lower components.
- Vertex 2.5 Adjustable Front Strut Spacers (pair) — precision-machined to deliver the full 4-inch lift without strut disassembly.
- V2 Monotube Shock Pair — reservoir shocks tuned for lifted truck dynamics.
Important notes
- Model-specific fit: Only fits LT Trailboss, Custom Trailboss, and AT4 models equipped with the factory 2-inch lift.
- Wheel requirements: Does not fit factory wheels. 20-inch or larger aftermarket wheels are required, with a minimum of 4.5-inch backspacing. Some aftermarket wheels may require a 0.25-inch wheel spacer (part #1065). Test fit wheels prior to final installation.
- Installation requirements: Minor cutting and drilling required; strut compressor needed to compress existing struts during install.
Why customers pick this at Road Runner
- Geometry-correct lift — knuckles, differential brackets, and drop cross member keep suspension angles factory-close, preserving ride quality.
- Rough Country lifetime replacement warranty backed by our in-house service team.
- Professional install by technicians who lift trucks like this every week — precision alignment performed in-house as part of every install.
- One-stop shop — we verify wheel fitment, source spacers if needed, and get you road-ready the same day.
Ready to build it? Call (678) 400-6467. Hablamos Español.
| Qty | Part | Part # |
|---|---|---|
| 1 | Universal Kit Box | Chevy Silverado 1500 (2025) GMC Sierra 1500 (2025) | 110030991 |
| 1 | 6in Kit Crossmember Box | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021) | 217BOX11 |
| 1 | FR Full Skid | Chevy Silverado 1500 (19-23) Chevy Suburban 1500 (2021) | 217BOX3 |
| 1 | Vertex 2.5 Adj FR Lh 6in | Chevy Silverado 1500 (19-25) | 685067L |
| 1 | Vertex 2.5 Adj FR Rh 6in | Chevy Silverado 1500 (19-25) | 685067R |
| 1 | V2 MONOTUBE SHOCK PAIR | 760739-2 |
| 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 |
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.
| Years | Make | Model | Drive |
|---|---|---|---|
| 2025-2026 | Chevrolet | Silverado 1500 Custom Trail Boss | 4WD |
| 2025-2026 | Chevrolet | Silverado 1500 LT Trail Boss | 4WD |
| 2025-2026 | GMC | Sierra 1500 AT4 | 4WD |
- Tire size: 33″ to 35″ tall
- Lift height: 4″
Requires cutting and drilling. ONLY fits LT Trail Boss, Custom Trail Boss, and AT4 models as they are equipped with a 2-inch factory lift. 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. Some aftermarket wheels may require 0.25" wheel spacer #1065.
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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