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Home / Suspension & Lift Kits / Lift Kits / Rough Country 48640
Rough CountryPart 48640 · UPC 00840269942839

3-Inch Lift Kit with M1 Shocks for 2005–2007 Ford Super Duty 4WD

$909.95MAP price
In stock — 18 available
Shipping weight: 149.7 lb.
  • Fits 2005–2007 Ford F-250 and F-350 Super Duty 4WD — see the full fitment list for trim coverage
  • Does not fit dually models; rear overload spring trucks require U-bolt kit 7649
  • Includes front coils, a 2-inch rear block and U-bolt kit, and two M1 monotube shock pairs
  • Radius arm drop brackets set caster correctly to preserve factory steering feel
  • Bolt-on installation — downloadable installation guide available

The Trail Fortress check

Will it fit your truck?

✓ Fits

2005–2007 Ford F-250 Super Duty · 4WD
Harley-Davidson EditionKing RanchLariatXLXLT
2005–2007 Ford F-350 Super Duty · 4WD
Harley-Davidson EditionKing RanchLariatXLXLT
2005–2007 Ford F-250 · 4WD
XLXLT

✕ Does not fit

  • Dually models

Models equipped with rear overload springs will need U-bolt kit7649. Fitment on this page is based on the manufacturer’s application data.

About this kit

3-Inch Lift Kit with M1 Shocks, fitment-checked

Rough Country 48640 is a 3-inch lift kit for 2005–2007 Ford F-250 and F-350 Super Duty 4WD trucks. The kit pairs front coils and a 2-inch rear block and U-bolt package with two M1 monotube shock pairs, plus radius arm drop brackets to keep caster where it belongs. Dually models are not covered.

This 3-inch lift kit for the 2005–2007 Ford Super Duty 4WD covers F-250 and F-350 applications from XL and XLT up through Lariat, King Ranch, and the Harley-Davidson Edition, as listed in the fitment section. It bolts on with front coils, a 2-inch rear block and U-bolt kit, radius arm drop brackets for correct caster, and two M1 monotube shock pairs, which brings the front up closer to level with the rear and adds ground clearance. Dually trucks are excluded, and trucks with rear overload springs need U-bolt kit 7649. A downloadable installation guide is available.

What’s in the box

Kit contents

  • 1× 486 Kit Box 1486BOX2
  • 1× 2 Inch Block & U-Bolt Kit 6557
  • 1× 3in Coil 9284
  • 1× Kit Box 148640991
  • 1× M1 MONOTUBE SHOCK PAIR 770783P
  • 1× M1 MONOTUBE SHOCK PAIR 770789P

Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 48640 kit fits the vehicles shown in the fitment section above.

Specifications

Specs

BrandRough Country
Part number48640
UPC / GTIN00840269942839
Lift height3 in
Shock packageM1 series
Shipping weight149.7 lb
Country of originUS
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.