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Home / Suspension & Lift Kits / Lift Kits / Rough Country 521.20
Rough CountryPart 521.20 · UPC 00843030127565

3-Inch Lift Kit with N3 Shocks for Ford Super Duty 4WD (2008-2010)

$769.95MAP price
In stock — 18 available
Shipping weight: 148 lb.
  • Fits 2008-2010 Ford F-250 and F-350 Super Duty 4WD — check your submodel in the fitment section
  • Does not fit dually models
  • Kit contents: 3in front coils, 2 inch rear block and U-bolt kit, N3 shocks
  • Radius arm drop brackets included so caster can be properly set
  • Bolt-on install; downloadable installation guide available

The Trail Fortress check

Will it fit your truck?

✓ Fits

2008–2010 Ford F-250 Super Duty · 4WD
Cabela'sFX4Harley-Davidson EditionKing RanchLariatXLXLT
2008–2010 Ford F-350 Super Duty · 4WD
Cabela'sFX4Harley-Davidson EditionKing RanchLariatXLXLT
2008–2009 Ford F-250 · 4WD
XLXLT

✕ Does not fit

  • Dually models

About this kit

3-Inch Lift Kit with N3 Shocks, fitment-checked

Rough Country 521.20 is a 3-inch lift kit for 2008-2010 Ford F-250 and F-350 Super Duty 4WD trucks, built around front coils, a rear block and U-bolt set, and N3 shocks. Dually models are not covered. Shipping weight: 148 lb.

This 3-inch lift kit for the 2008-2010 Ford Super Duty 4WD ships as a bolt-on package: front coil springs, a rear block and U-bolt set, and N3 shocks, with radius arm drop brackets that let caster be set back where the factory geometry wants it. Covered applications run from XL and XLT through Lariat, King Ranch, FX4, Cabela's, and Harley-Davidson Edition, plus F-250 listings for 2008-2009. Dually trucks are excluded. The front rides closer to rear height once installed. A downloadable Rough Country installation guide is available before you start.

What’s in the box

Kit contents

  • 1× 2 Inch Block & U-Bolt Kit 6557
  • 1× 3in Coil 9284
  • 1× Kit Box 1516BOX2
  • 1× N3 Kit Box 1486BOX4

Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 521.20 kit fits the vehicles shown in the fitment section above.

Specifications

Specs

BrandRough Country
Part number521.20
UPC / GTIN00843030127565
Lift height3 in
Shock packageN3 series
Shipping weight148 lb
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.