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Home / Suspension & Lift Kits / Lift Kits / Rough Country 53850
Rough CountryPart 53850 · UPC 00843030153021

6-Inch Lift Kit with Vertex Shocks for Super Duty 4WD (2008-2010)

$3,129.95MAP price
In stock — 6 available
Shipping weight: 299.21 lb.
  • Fits 2008-2010 Ford F-250 and F-350 Super Duty 4WD — see the fitment list for covered trims
  • Does not fit dually models; factory rear contact overload springs must be removed
  • Vertex 2.5 front and rear shocks, 6in coil, add-a-leaf, and a 3 inch block and U-bolt kit
  • Radius arm upgrade boxes with rubber bushings plus an axle-end alignment cam for caster adjustment
  • Gas trucks may require exhaust modification for front driveshaft clearance

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

Factory rear contact overload springs will need to be removed Gas models may require exhaust modification to clear front drive shaft Fitment on this page is based on the manufacturer’s application data.

About this kit

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

Rough Country 53850 is a 6-inch lift kit for 2008-2010 Ford F-250 and F-350 Super Duty 4WD trucks. The kit pairs Vertex 2.5 front and rear shocks with a coil, add-a-leaf, radius arm upgrade boxes, and a 3 inch block and U-bolt kit. It does not fit dually models, and the factory rear contact overload springs come out during the install.

This 6-inch lift kit for the 2008-2010 Ford Super Duty 4WD covers F-250 and F-350 applications from XL and XLT through Lariat, King Ranch, FX4, Cabela's, and Harley-Davidson Edition, as listed in the fitment section. Two Vertex 2.5 front and two Vertex 2.5 rear shocks handle damping, while the included radius arms hold factory geometry and an adjustable cam at the axle allows caster correction. Dually trucks are excluded, and gas trucks may need exhaust work for front driveshaft clearance. A downloadable Rough Country installation guide is available for planning the job.

What’s in the box

Kit contents

  • 1× Kit Box 1538BOX1
  • 1× Add-A-Leaf 6111
  • 1× 3 Inch Block And U-Bolt Kit 6552
  • 1× 6in D-Coil 9295
  • 2× Vertex 2.5 FR 6 In 685754
  • 2× Vertex 2.5 RR 6 In 695762
  • 1× Radius Arm Upgrade Box 53600991A
  • 1× Radius Arm Upgrade Box 53600992A

Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 53850 kit fits the vehicles shown in the fitment section above.

Specifications

Specs

BrandRough Country
Part number53850
UPC / GTIN00843030153021
Lift height6 in
Shock packageVertex series
Shipping weight299.21 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.