6-Inch Lift Kit with N3 Shocks for 2025 GMC Sierra 1500
- Fits 2025 GMC Sierra 1500 4WD and RWD — Elevation, Pro, SLE, and SLT
- Does not fit Denali, Denali Ultimate, AT4, or AT4X models
- Kit includes a 6-inch loaded strut pair, N3 shock pair, cast knuckles, crossmember, front skid, and mono-leaf rear
- Requires 20-inch or larger aftermarket wheels with 4.5in backspacing; factory wheels will not fit, and some wheels need the 0.25 inch 1065 spacer
- Cutting and drilling required — downloadable installation guide available
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Denali or Denali Ultimate models with
- AT4 models
- AT4X models
- Factory wheels
Requires cutting and drilling. 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. Fitment on this page is based on the manufacturer’s application data.
About this kit
6-Inch Lift Kit with N3 Shocks, fitment-checked
Rough Country 26632_A is a 6-inch lift kit for the 2025 GMC Sierra 1500 in 4WD or RWD, covering Elevation, Pro, SLE, and SLT. The kit pairs a loaded 6-inch strut pair with an N3 shock pair, cast steering knuckles, and a mono-leaf rear setup. Factory wheels will not work: 20-inch or larger aftermarket wheels with 4.5in backspacing are required. Denali, Denali Ultimate, AT4, and AT4X are not covered.
This 6-inch lift kit for the 2025 GMC Sierra 1500 covers 4WD and RWD in Elevation, Pro, SLE, and SLT form. Contents run to a loaded 6-inch strut pair, an N3 shock pair, driver and passenger cast knuckle boxes, a high-clearance crossmember, a front full skid, and a mono-leaf rear package. Installation calls for cutting and drilling. Wheel planning matters here: stock wheels will not clear, so budget for 20-inch or larger aftermarket wheels with 4.5in backspacing, test fit before final assembly, and note that some wheels call for a 0.25 inch spacer, part 1065. Shipping weight: 275 lb.
What’s in the box
Kit contents
- 1× Universal Kit Box 21630991
- 1× 6in Kit Crossmember Box 217BOX11
- 1× FR Full Skid 217BOX3
- 1× Loaded Strut Pair 501085$369.95
- 1× N3 Shock Pair 23158
- 1× 6in Kit Dr Knuckle Box 21730BOX5
- 1× 6in Kit Ps Knuckle Box 21730BOX6
Priced components are sold separately here, so a worn shock or arm can be replaced on its own later.
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 26632_A kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 26632_A |
| UPC / GTIN | 00840269970696 |
| Lift height | 6 in |
| Shock package | N3 series |
| Shipping weight | 275 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
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