7-Inch Lift Kit with M1 Monotube Shocks for Chevy/GMC HD
- Two M1 monotube shock pairs, front and rear
- 7 inches of lift without dropping the torsion bars
- Fits 2020–2025 Chevy and GMC 2500 HD/3500 HD equipped with rear overload springs
- Does not fit dually, AT4X, or ZR2; aftermarket wheels required
- Downloadable installation guide available. Shipping weight: 306.0 lb
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- Dually models
- AT4X models
- ZR2 models
ONLY fits models equipped with rear overload springs. Does NOT work with factory wheels. Gas models may require modification to the exhaust for driveshaft clearance. Fitment on this page is based on the manufacturer’s application data.
About this kit
7-Inch Lift Kit with M1 Monotube Shocks, fitment-checked
The M1 build of Rough Country's 7-inch lift kit for 2020–2025 Silverado 2500 HD/3500 HD and Sierra 2500 HD/3500 HD. Height comes from a crossmember and 7-inch bracket set rather than a torsion bar drop, with two M1 monotube shock pairs and new steering knuckles included. Requires rear overload springs; dually, AT4X, and ZR2 models will not work, and factory wheels will not clear.
Choosing the 7-inch lift kit for a 2020–2025 Chevrolet Silverado 2500 HD or GMC Sierra 2500 HD in M1 trim means monotube damping at both axles alongside the non-torsion-drop hardware. The crossmember is laser-cut to a factory-style fit, the knuckles come in the box, and stock track width is retained so alignment behaves predictably. No differential drilling is called for. The rear components suit trucks with overload springs only. Dually, AT4X, and ZR2 are excluded, factory wheels will not clear, and gas models may need exhaust modification for driveshaft clearance. A downloadable installation guide is available.
What’s in the box
Kit contents
- 1× Crossmember Box 10130BOX3
- 1× 7" NTD Bracket Box 10130998
- 1× Kit Box 10230BOX1
- 1× 253x Kit Box 1253BOX6
- 1× M1 MONOTUBE SHOCK PAIR 770744P
- 1× M1 MONOTUBE SHOCK PAIR 770776P
- 1× 7" NTD Rear Kit Box 111130991
- 1× Dr Knuckle 10130BOX1
- 1× Pass Knuckle 10130BOX2
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 111140 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 111140 |
| UPC / GTIN | 00840269973895 |
| Lift height | 7 in |
| Shock package | M1 series |
| Shipping weight | 306 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
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