5-Inch M1 Monotube Lift Kit for 2011-2019 Chevy/GMC 2500 HD
- Fits 2011-2019 Silverado 2500 HD/3500 HD and Sierra 2500 HD/3500 HD, plus the 2015 Silverado 3500 WT
- Torsion bar drop design with two M1 Monotube shock pairs
- Minor cutting and drilling required; factory rear overload springs must be removed where fitted
- Does not fit dually models; factory wheels will not work
The Trail Fortress check
Will it fit your truck?
✓ Fits
+ 1 more applications
✕ Does not fit
- Dually models
Requires minor cutting and drilling. Factory rear overload springs will NEED to be removed on equipped models. Gas models may require modification to the exhaust for driveshaft clearance Does NOT work with factory wheels. Models equipped with factory 17-inch wheels must use 17-inch or larger aftermarket wheels due to larger calipers/rotor. Fitment on this page is based on the manufacturer’s application data.
About this kit
5-Inch M1 Monotube Lift Kit, fitment-checked
Rough Country 10340 is the M1 Monotube take on the 5 inch torsion bar drop kit for 2011-2019 Silverado and Sierra 2500 HD/3500 HD. Minor cutting and drilling are required, dually trucks are excluded, and any factory rear overload springs have to come out. Aftermarket wheels are mandatory.
Owners upgrading a 2011-2019 HD usually settle the shock question first. This kit answers it with two M1 Monotube pairs, then supplies the 5 inch torsion bar drop box, crossmember, front kit box, and both lifted knuckles to get the truck there. Ride quality and stock track width are preserved, and no drivetrain or exhaust changes are called for beyond possible clearance work on gas trucks. Wheels must be aftermarket, and trucks with factory 17-inch wheels need 17-inch or larger replacements. Shipping weight: 269.7 lb.
What’s in the box
Kit contents
- 1× Crossmember Box 10130BOX3
- 1× 253x Kit Box 1253BOX6
- 1× M1 MONOTUBE SHOCK PAIR 770837P
- 1× M1 MONOTUBE SHOCK PAIR 770744P
- 1× 5-7in Kit Box 10430BOX1
- 1× 5in Torsion Bar Drop Kit Box 10330BOX1
- 1× Dr Knuckle 1253BOX1
- 1× Pass Knuckle 1253BOX2
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 10340 kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 10340 |
| UPC / GTIN | 00840269968723 |
| Lift height | 5 in |
| Shock package | M1 series |
| Shipping weight | 269.7 lb |
| Country of origin | US |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here