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Home / Suspension & Lift Kits / Lift Kits / Rough Country 40730
Rough CountryPart 40730 · UPC 00840269903151

4-Inch Lift Kit with N3 Shocks for 2021–2025 Ford F-150 Tremor 4WD

$1,199.95MAP price

Free shipping · 30-day returns

In stock: 2 available
Shipping weight: 162 lb.
  • Fits 2021–2025 Ford F-150 4WD Tremor models only: no other F-150 configuration
  • Wheel diameter must be 20 inches or larger
  • Kit contents: front strut box, rear kit boxes, RC crossmember, forged aluminum knuckles, N3 shock pair
  • Aluminum knuckles weigh about half what steel knuckles do, reducing unsprung mass
  • Front ride height comes up level with the rear; track width stays at factory spec
  • Downloadable installation guide available. Shipping weight: 162 lb

Will it fit your truck?

✓ Fits

2021–2025 Ford F-150 · 4WD
Tremor

Fits F-150 Tremor models ONLY. Wheels must be 20" in diameter or larger. Fitment on this page is based on the manufacturer’s application data.

More for your truck

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

Rough Country 40730 is a 4-inch lift kit for the 2021–2025 Ford F-150 Tremor 4WD. The kit pairs forged aluminum knuckles and a crossmember with front struts, rear components, and an N3 shock pair. It fits Tremor models only, and your wheels need to measure 20 inches or larger in diameter.

This 4-inch lift kit for the 2021–2025 Ford F-150 Tremor 4WD ships as a multi-box package: front strut and rear kit boxes, a Rough Country crossmember, forged aluminum knuckles, and an N3 shock pair. The aluminum knuckles cut roughly half the weight of comparable steel units, which trims unsprung mass, and the design keeps track width at the factory measurement. The added height raises ground clearance and brings the front up level with the rear. Confirm your truck is a Tremor and your wheels are 20 inches or larger before ordering, then work from the downloadable Rough Country installation guide.

Kit contents

  • 1× 4in RR Kit Box 40730BOX3
  • 1× Kit Box 40730BOX5
  • 1× 4in Strut Box 555BOX3
  • 1× RC Crossmember Box 40730BOX1
  • 1× Aluminum Knuckles 49930992
  • 1× N3 Shock Pair 23165

Rough Country shares subassemblies across kits, so individual package labels can carry broader application ranges. The complete 40730 kit fits the vehicles shown in the fitment section above.

Specifications

BrandRough Country
Part number40730
UPC / GTIN00840269903151
Lift height4 in
Shock packageN3 series
Shipping weight162 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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