3.5-Inch Lift Kit with Vertex Struts for 2025-2026 GMC Sierra 1500
- Fits 2025-2026 GMC Sierra 1500 4WD and RWD in Elevation, Pro, SLE, and SLT trims
- 3.5 inches of front lift with 2.5 inches at the rear for a leveled stance
- Kit contents: Vertex 2.5 adjustable front struts (left and right), red forged upper control arms, strut hardware box, V2 monotube shock pair
- Excludes Denali, Denali Ultimate, AT4, AT4X, and 2019 Classic body-style trucks; strut package not for diesel
- Forged aluminum arms ship with POM ball joints already pressed in
- Downloadable installation guide available — shipping weight: 121.0 lb
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- 2019 "Classic" models (2018 body style) Does NOT fit Denali or Denali Ultimate models
- AT4 models
- AT4X models
Due to variances in motor weight Rough Country's replacement strut options do NOT work on diesel models. Fitment on this page is based on the manufacturer’s application data.
About this kit
3.5-Inch Lift Kit with Vertex Struts, fitment-checked
Rough Country 28857RED_A is a 3.5-inch front lift kit for the 2025-2026 GMC Sierra 1500 in 4WD and RWD, listed for Elevation, Pro, SLE, and SLT. The box pairs left and right Vertex 2.5 adjustable front struts with red forged upper control arms and a V2 monotube rear shock pair. It does not fit Denali, Denali Ultimate, AT4, or AT4X trims, and the strut package is not for diesel models.
This 3.5-inch lift kit for the 2025-2026 GMC Sierra 1500 4WD and RWD raises the front and adds 2.5 inches at the rear so the truck sits closer to level. Contents include the Vertex 2.5 adjustable left and right front struts, red forged aluminum upper control arms with pre-installed POM ball joints, a strut kit hardware box, and a V2 monotube shock pair. Confirm your trim first: Denali, Denali Ultimate, AT4, AT4X, 2019 Classic body-style, and diesel applications are all outside this kit's coverage. A downloadable Rough Country installation guide is available before you start.
What’s in the box
Kit contents
- 1× Red Forged Upper Control Arms 29501RED
- 1× 288 Strut Kit Box 28831991
- 1× Vertex 2.5 Adj FR Lh 3.5in 685066L
- 1× Vertex 2.5 Adj FR Rh 3.5in 685066R
- 1× V2 MONOTUBE SHOCK PAIR 760782-2
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 28857RED_A kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 28857RED_A |
| UPC / GTIN | 00840269974236 |
| Lift height | 3.5 in |
| Shock package | Vertex series |
| Shipping weight | 121 lb |
| Country of origin | TH |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here