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Suspension and Components› Suspension Kits

Stillen

4-Inch Lift Kit

Name: 4-Inch Lift Kit
Brand: Stillen
SKU: 55531

$1,449.95

SKU: 55531

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Rough Country 4-Inch Lift Kit is a suspension system designed for the 2015-2020 Ford F-150 4WD. It provides boosted ground clearance and allows for the fitment of up to 33-inch tires. This kit features fabricated rear blocks with an anti-axle wrap design to preserve the factory ride feel.

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Transform your Ford F-150 with Rough Country's 4-Inch Suspension Lift Kit, engineered for aggressive off-road performance and a commanding stance. This comprehensive kit equips your truck for challenging terrain, offering boosted ground clearance to easily navigate rocks, ruts, and debris, while allowing for the installation of up to 33-inch tires. Precision-designed components like differential drop brackets, sway-bar brackets, and brake line extensions ensure proper geometry and maintain a smooth, controlled ride even with the added lift. This kit features heavy-duty, reinforced front and rear crossmembers tailored for newer F-150 models, creating a level stance that complements the factory track width. Buyers can choose between nitrogen-charged N3 shocks or upgrade to M1 Monotube shocks for enhanced ride precision and heat dissipation, allowing for customization of the ride quality. Installation requires cutting and drilling. Please note that this kit does NOT fit regular or standard cab models due to potential pinion angle issues that can cause drivetrain vibrations. If retaining factory wheels, it is advised to run no wider than a 11.5-inch wide tire. The kit is compatible with 18-inch or larger factory wheels. Rough Country backs this lift kit with a Limited Lifetime Replacement Guarantee.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	Stillen
Part Number	55531
Category	Suspension and Components

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

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