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Home / Suspension & Lift Kits / Lift Kits / Rough Country 51340
Rough CountryPart 51340 · UPC 00840269917684

6-Inch Lift Kit with M1 Shocks for 2017–2022 F-250/F-350 4WD

$1,359.95MAP price

Free shipping · 30-day returns

In stock: 16 available
Shipping weight: 254.3 lb.
  • Fits 2017–2022 Ford F-250 and F-350 Super Duty 4WD in XL, XLT, Lariat, King Ranch, Platinum, and Limited trim
  • Excludes gas engine trucks, duallys, manual shift transfer cases, 3.5-inch rear axle tubes, factory contact overload springs, and Tremor package trucks
  • Box includes two M1 monotube shock pairs, a 6-inch coil package, 4.5-inch block U-bolt kit, and a transfer case clocking kit
  • Radius arm drop brackets set proper caster; fabricated anti-axle-wrap rear blocks replace cast blocks
  • Downloadable installation guide available. Bolt-on install
📄 Installation guides (PDF): Kit Instructions · Clocking Ring Install

Will it fit your truck?

✓ Fits

2017–2022 Ford F-250 Super Duty · 4WD
King RanchLariatLimitedPlatinumXLXLT
2017–2022 Ford F-350 Super Duty · 4WD
King RanchLariatLimitedPlatinumXLXLT

✕ Does not fit

  • Gas engine models
  • Dually models
  • Manual shift transfer cases Does NOT fit models with 3.5" rear axle tube Does NOT fit models equipped with rear factory contact overload springs Does NOT work on models equipped with Tremor Factory Trim Package

More for your truck

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

Rough Country 51340 is a 6-inch lift kit for 2017–2022 Ford F-250 and F-350 Super Duty 4WD trucks, XL through Limited. Two M1 monotube shock pairs, a 6-inch coil package, fabricated rear blocks with U-bolts, and a transfer case clocking kit make up the box. It does not fit gas engine trucks, duallys, manual shift transfer cases, trucks with a 3.5-inch rear axle tube, factory contact overload springs, or the Tremor package.

This 6-inch lift kit for the 2017–2022 Ford F-250/F-350 Super Duty 4WD bolts on with radius arm drop brackets that keep caster where the factory set it, so steering feel stays close to stock. Two M1 monotube shock pairs handle damping front and rear, and the anti-axle-wrap fabricated rear blocks ride on a 4.5-inch block U-bolt kit. A transfer case clocking kit is included to sort driveline angle. Check your engine, axle tube, and overload spring configuration against the exclusion list first, then work from the downloadable Rough Country installation guide.

Kit contents

  • 1× Kit Box 1504991
  • 1× 4.5 In Block U-Bolt Kit No Overloads 1563BOX4
  • 1× Transfer Case Clocking Kit 55003
  • 1× M1 MONOTUBE SHOCK PAIR 770754P
  • 1× M1 MONOTUBE SHOCK PAIR 770805P
  • 1× Univ. 3 4 X 4 1 X 1 2in U-Bolt Kit 7673
  • 1× 6 Inch Coil Box 9296

Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 51340 kit fits the vehicles shown in the fitment section above.

Specifications

BrandRough Country
Part number51340
UPC / GTIN00840269917684
Lift height6 in
Shock packageM1 series
Shipping weight254.3 lb
Country of originUS
CategorySuspension & Lift Kits › Lift Kits

Why buy here

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.

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