Fitment-checked off-road parts  ·  Manufacturer-listed exclusions shown before you buy
TRAILFORTRESSBuilt for the trail. Checked for your truck.
Cart (0)
Home / Suspension & Lift Kits / Lift Kits / Rough Country 12730
Rough CountryPart 12730 · UPC 00843030145743

6-Inch Lift Kit for Chevy K20 and GMC K25 4WD (1973-1976)

$699.95MAP price
In stock — 8 available
Shipping weight: 181 lb.
  • Fits 1973-1976 Chevrolet K20 and K20 Suburban, GMC K25, K2500, and K25 Suburban 4WD
  • Front leaf springs and front installation kit, rear add-a-leaf kit, raised steering arm
  • Two N3 shock pairs, application-valved for this platform
  • Factory front sway bar: drop brackets (part 1019) recommended
  • Factory front quad shocks require the separate quad shock kit

The Trail Fortress check

Will it fit your truck?

✓ Fits

1975–1976 Chevrolet K20 · 4WD
CheyenneCustom DeluxeScottsdaleSilverado
1975–1976 GMC K25 · 4WD
BaseHigh SierraSierra ClassicSierra Grande
1975–1976 GMC K25 Suburban · 4WD
BaseHigh SierraSierra ClassicSierra Grande
1975–1976 Chevrolet K20 Suburban · 4WD
Custom DeluxeScottsdaleSilverado

+ 2 more applications

If vehicle is equipped with a front sway-bar drop brackets are recommended. (SKU: 1019) If vehicle is equipped with factory front quad shocks (4 total front shocks) please add Factory Quad Shock kit below (SKU: Q20027). Fitment on this page is based on the manufacturer’s application data.

About this kit

6-Inch Lift Kit, fitment-checked

Front leaf springs, a rear add-a-leaf kit, a raised steering arm, and two N3 shock pairs make up this 6-inch lift kit for 1973-1976 Chevrolet K20 and K20 Suburban, GMC K25, K2500, and K25 Suburban 4WD models. Trucks with a factory front sway bar should add drop brackets (part 1019).

This is the K20 and K25 application of Rough Country's 6-inch leaf-spring lift, covering 1973-1976 Chevrolet K20 and K20 Suburban plus GMC K25, K2500, and K25 Suburban 4WD trucks in Cheyenne, Custom Deluxe, Scottsdale, Silverado, High Sierra, Sierra Classic, and Sierra Grande trim. Front springs and an installation kit handle the lift up front, a rear add-a-leaf kit brings the back end along, and a raised steering arm keeps the steering geometry in line. Two N3 shock pairs are included. Trucks with a factory front sway bar should add drop brackets, part 1019, and trucks with factory front quad shocks need the separate quad shock kit.

What’s in the box

Kit contents

  • 1× INSTALLATION KIT 6513
  • 1× Add-A-Leaf Spring Kit 6103
  • 1× Raised Steering Arm 6600
  • 1× Frt. Inst. Kit 7560
  • 2× 6in Front Leaf Spring 8015
  • 1× N3 Shock Pair 23173
  • 1× N3 Shock Pair 23174

Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 12730 kit fits the vehicles shown in the fitment section above.

Specifications

Specs

BrandRough Country
Part number12730
UPC / GTIN00843030145743
Lift height6 in
Shipping weight181 lb
Country of originCN
CategorySuspension & Lift Kits › Lift Kits

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.