4-Inch Lift Kit with N3 Shocks for Silverado & Sierra 4WD (2019–2024)
- Fits Trail Boss and AT4 configurations of the 2019–2024 Silverado 1500 and Sierra 4WD — check the fitment table for LTD and Limited applications
- Not for diesel engines, Denali trucks with Magnetic Ride Control, or 2019 Classic (previous body style) trucks
- Requires aftermarket wheels 20 inches or larger with 4.5in backspacing; test fit before installing
- Includes high-clearance crossmember, cast knuckles, fabricated rear blocks, front skid plate, and N3 series shocks
- Cutting and drilling required; no strut disassembly — downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
+ 1 more applications
✕ Does not fit
- GMC Denali models with Magnetic Ride Control
- 2019 "Classic" models (2018 body style) ONLY fits Trailboss and AT4 models Requires cutting and drilling
- Factory wheels 20-inch or larger aftermarket wheels are required
- Diesel engine models
About this kit
4-Inch Lift Kit with N3 Shocks, fitment-checked
Rough Country 27531 is a 4-inch lift kit built for Trail Boss and AT4 versions of the 2019–2024 Chevrolet Silverado 1500 and GMC Sierra 4WD. It ships as a multi-box kit with a high-clearance crossmember, front skid plate, cast steering knuckles, fabricated rear blocks, and application-valved N3 series shocks. Factory wheels will not clear; aftermarket wheels 20 inches or larger with 4.5in backspacing are required.
This 4-inch lift kit for the 2019–2024 Silverado 1500 and Sierra 4WD is limited to Trail Boss and AT4 trucks, plus the Silverado 1500 LTD and Sierra 1500 Limited applications shown in the fitment table. It does not fit diesel models, GMC Denali trucks with Magnetic Ride Control, or 2019 Classic trucks carrying the previous body style. Cutting and drilling are part of the job, and the struts do not need to be disassembled. Kit boxes cover the crossmember, front components, driver and passenger knuckles, and a full front skid. A downloadable installation guide is available.
What’s in the box
Kit contents
- 1× Universal Kit Box 217BOX1A
- 1× 6in Kit Crossmember Box 217BOX11
- 1× FR Full Skid 217BOX3
- 1× 6in FR Kit Box 21731994
- 1× 6in Kit Dr Knuckle Box 21730BOX5
- 1× 6in Kit Ps Knuckle Box 21730BOX6
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 27531 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 27531 |
| UPC / GTIN | 00843030158446 |
| Lift height | 4 in |
| Shock package | N3 series |
| Shipping weight | 235 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
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