7-Inch Lift Kit with M1 Shocks for Silverado & Sierra 1500
- M1 loaded strut pair and M1 monotube shock pair included with the 7-inch kit
- Fits 2014–2018 Silverado 1500 and Sierra 1500 4WD plus 2019 Silverado 1500 LD
- Not compatible with Denali, Denali Ultimate, or eAssist (ECO Hybrid) trucks
- 18-inch or larger wheels required; cutting and drilling required
- 0.25 inch spacer 1065 retains factory wheels; calibrator 90009 for larger tires
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Denali or Denali Ultimate models
- Models with eAssist (ECO Hybrid) package
Requires cutting and drilling. To ensure proper fit please confirm if the stock control arms are cast aluminum cast steel or stamped steel. For a visual please click here. To ensure adequate clearance when lowering the differential models equipped with a mass damper on the front differential must be removed. IMPORTANT! - Installation of larger tires will require Rough Country's Speedometer Calibrator SKU: 90009. Tire and Wheel Details 18-inch or larger wheels are required. If wider than 35x12.50 R20 tires are used offset wheels will be required and trimming may be required. Please test fit wheels prior to installation. To retain factory wheels a 0.25" wheel spacer will be required SKU: 1065. Fitment on this page is based on the manufacturer’s application data.
About this kit
7-Inch Lift Kit with M1 Shocks, fitment-checked
The M1 build of Rough Country's 7-inch knuckle kit for 2014–2018 Silverado 1500 and Sierra 1500 4WD (part 17440): M1 loaded struts up front, M1 monotube shocks at the rear. Trucks with Magnetic Ride Control — Denali and Denali Ultimate — are excluded, as are eAssist (ECO Hybrid) models, and the install involves cutting and drilling.
What separates this one from its siblings is damping: the box carries an M1 loaded strut pair sized for the 7-inch height and an M1 monotube shock pair for the rear, alongside driver- and passenger-side knuckles and the high-clearance crossmember. Applications include 2014–2018 Silverado 1500 in WT through High Country trim, the SSV, GMC Sierra and Sierra 1500 in SLE and SLT, and the 2019 Silverado 1500 LD. Confirm the control arm material, pull any front differential mass damper, and run 18-inch or larger wheels. Shipping weight: 247 lb.
What’s in the box
Kit contents
- 1× 7in Aluminum Stamped Steel Dr Knuckle 17430BOX11
- 1× 7in Aluminum Stamped Steel Ps Knuckle 17430BOX12
- 1× 7in Crossmember Box 17430BOX2
- 1× 174 Universal Kit Box 174BOX1
- 1× M1 Loaded Strut Pair 502060
- 1× M1 MONOTUBE SHOCK PAIR 770739P
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 17440 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 17440 |
| UPC / GTIN | 00840269916991 |
| Lift height | 7 in |
| Shock package | M1 series |
| Shipping weight | 247 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here