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Home / Suspension & Lift Kits / Lift Kits / Rough Country 11055
Rough CountryPart 11055 · UPC 00840269942778

5-Inch Lift Kit with Vertex 2.5 Shocks for Silverado 2500 HD

$3,299.95MAP price
In stock — 52 available
Shipping weight: 317 lb.
  • Vertex 2.5 front shocks rated 5 to 7 inches, Vertex 2.5 rear shocks rated 3.5 to 7.5 inches
  • Torsion bar drop, laser-cut crossmember, and cast driver and passenger knuckles
  • Covers 2020-2026 Silverado and Sierra 2500 HD and 3500 HD, 4WD and RWD
  • Does not fit dually trucks, rear overload spring trucks, AT4X, or ZR2
  • Factory wheels will not work; gas trucks may need exhaust modification for driveshaft clearance

The Trail Fortress check

Will it fit your truck?

✓ Fits

2020–2026 GMC Sierra 3500 HD · 4WD/RWD
AT4BaseDenaliDenali UltimateProSLESLT
2020–2026 Chevrolet Silverado 2500 HD · 4WD/RWD
CustomHigh CountryLTLTZWTZR2
2020–2026 GMC Sierra 2500 HD · 4WD/RWD
AT4BaseDenaliDenali UltimateProSLESLT
2020–2026 Chevrolet Silverado 3500 HD · 4WD/RWD
High CountryLTLTZWT

✕ Does not fit

  • Dually models
  • Equipped with rear overload springs
  • AT4X models
  • ZR2 models

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

5-Inch Lift Kit with Vertex 2.5 Shocks, fitment-checked

A 5-inch lift for 2020-2026 Silverado and Sierra 2500 HD and 3500 HD trucks, riding on Vertex 2.5 front shocks rated for 5 to 7 inches and Vertex 2.5 rear shocks rated for 3.5 to 7.5 inches. Factory wheels will not work with this kit.

Rough Country 11055 lifts a 2020-2026 Silverado or Sierra 2500 HD or 3500 HD by 5 inches using a torsion bar drop, a laser-cut crossmember, and cast driver and passenger knuckles. Damping comes from Vertex 2.5 front shocks specified for 5 to 7 inches of lift and Vertex 2.5 rear shocks specified for 3.5 to 7.5 inches. Track width and axle angles stay at factory position, and the differential needs no drilling. Factory wheels will not clear, dually trucks and rear overload spring trucks are out, and gas trucks may need exhaust work for driveshaft clearance.

What’s in the box

Kit contents

  • 1× Crossmember Box 10130BOX3
  • 1× 253x Kit Box 1253BOX6
  • 2× Vertex 2.5 FR 5-7 In 685837
  • 2× Vertex 2.5 RR 3.5-7.5 In 695744
  • 1× 5in Torsion Bar Drop Kit Box 11030992
  • 1× 5in Torsion Bar Drop Kit Box 11030993
  • 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 11055 kit fits the vehicles shown in the fitment section above.

Specifications

Specs

BrandRough Country
Part number11055
UPC / GTIN00840269942778
Lift height5 in
Shock packageVertex series
Shipping weight317 lb
Country of originTH
CategorySuspension & Lift Kits › Lift Kits
Installation guideDownloadable PDF

Why buy here

The fitment-first store

Manufacturer-listed exclusions shown. We publish what a part does not fit — before you buy, not after the return.
Sourced from the application data. Fitment on this page comes from the manufacturer’s application catalog, not a copied listing.
Real install docs. The actual step-by-step guide, linked right on the page.