3.5-Inch Lift Kit with M1 Struts for 2007–2021 Toyota Tundra
- Fits 2007–2021 Toyota Tundra 4WD and RWD across the submodels listed in the fitment section
- Does not fit TRD Pro, Rock Warrior, or XSP-X models
- M1 monotube loaded struts up front, M1 monotube shocks in back, plus tubular upper control arms
- Bolt-on install with no cutting or drilling — downloadable installation guide available
- Limited Lifetime Warranty
The Trail Fortress check
Will it fit your truck?
✓ Fits
✕ Does not fit
- TRD Pro Rock Warrior or XSP-X models
About this kit
3.5-Inch Lift Kit with M1 Struts, fitment-checked
Rough Country 76840RED is a 3.5-inch lift kit for the 2007–2021 Toyota Tundra, built around an M1 monotube loaded strut pair, an M1 monotube shock pair, and a red tubular upper control arm upgrade box. It bolts on with no cutting or drilling. It does not fit TRD Pro, Rock Warrior, or XSP-X models.
This 3.5-inch lift kit for the 2007–2021 Toyota Tundra ships as three assemblies: the M1 monotube loaded strut pair, an M1 monotube shock pair for the rear, and the 3.5-inch upper control arm upgrade box. The loaded struts arrive assembled, so the front install skips spring compression, and the tubular arms use rubber bushings to hold ball joint angles in a working range at ride height. Coverage spans Base, SR, SR5, Limited, Platinum, 1794 Edition, Nightshade, and Trail in 4WD and RWD — check the fitment list and exclusions first, then pull the downloadable installation guide.
What’s in the box
Kit contents
- 1× M1 Loaded Strut Pair 502081
- 1× M1 MONOTUBE SHOCK PAIR 770838P
- 1× 3.5in Upper Control Upgrade Box 768991RED
Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 76840RED kit fits the vehicles shown in the fitment section above.
Specifications
Specs
| Brand | Rough Country |
| Part number | 76840RED |
| UPC / GTIN | 00840269940781 |
| Lift height | 3.5 in |
| Shock package | M1 series |
| Shipping weight | 91 lb |
| Warranty | Limited Lifetime Warranty |
| Country of origin | CN |
| Category | Suspension & Lift Kits › Lift Kits |
| Installation guide | Downloadable PDF |
Why buy here