Rough Country

4 Inch Lift Kit | M1 Struts/M1 | Ford F-150 4WD (2015-2020)

Part #: 55540Category: Susp Lift Kits 4wd

Sold & installed by an Authorized Rough Country Dealer

Does it fit? Listed for 1 vehicle (Ford). Pick your vehicle to check.

  • Increased ground clearance Track width remains the same as factory Works with 18in or…

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  • Authorized Rough Country dealer
  • Installed at our Silver Star Rd shop
  • No-credit-needed financing

Install Instructions for the 4 Inch Lift Kit | M1 Struts/M1 | Ford… (PDF)

About the 4 Inch Lift Kit | M1 Struts/M1 | Ford F-150 4WD (2015-2020)

Transform Your F-150 with Rugged Style and Trail-Ready Performance: Give your Ford F-150 a bold new stance and unstoppable capability with Rough Country's 4-Inch Suspension Lift Kit. Designed for aggressive off-road performance and a head-turning look, this all-inclusive kit equips your truck for the path less traveled.

Run Up to 33-Inch Tires with Confidence: Gain the clearance you need to conquer rough terrain. This kit includes durable lifted knuckles and strut spacers, providing room for larger tires while maintaining optimal geometry.

Engineered for a Factory-Like Ride: Precision-designed differential drop brackets, sway-bar brackets, brake line extensions, and a driveshaft spacer work together to maintain proper angles, ensuring a smooth, controlled ride, even with added lift.

Heavy-Duty Crossmembers Built to Last: Front and rear crossmembers are reinforced for maximum strength and feature a modern design tailored to fit newer F-150 models seamlessly.

Level Stance, OEM Compatibility: The system levels the front with the rear for a clean, aggressive profile, and retains the factory track width. Works with 18-inch or larger factory wheels* for hassle-free fitment.

Stronger, Longer-Lasting Rear Blocks: Fabricated rear blocks are engineered to outperform and outlast cast alternatives, delivering enhanced durability in demanding conditions.

Ride Quality You Control: Fully Configurable with Shock/Strut Options: Choose from nitrogen-charged N3 shocks for balanced performance, or upgrade to M1 Monotube shocks for enhanced ride precision and heat dissipation.

Built-In Anti-Axle Wrap Design: Specially designed rear blocks combat axle wrap and eliminate common lift block issues, all while preserving the factory ride feel.

Peace of Mind Included: Rough Country backs this kit with a Limited Lifetime Replacement Guarantee, ensuring your suspension is ready for whatever comes next.

Features

  • Increased ground clearance Track width remains the same as factory Works with 18in or larger factory wheels* Levels the front with the rear of the vehicle Fabricated blocks are stronger and offer a l

Specifications

Specifications for the 4 Inch Lift Kit | M1 Struts/M1 | Ford F-150 4WD (2015-2020)
BrandRough Country
TypeSusp Lift Kits 4wd
Part number55540
NotesRequires cutting and drilling. *When using 18in or larger factory wheels the maximum tire width is 11.5-inches.

Vehicle Fitment

  • 2015–2020 Ford F-150 4WD
Map of Orlando Treads & More, 6224 Silver Star Rd, Orlando
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Find Us on Silver Star Road

Opening hours
Monday8:30 AM – 6:30 PM
Tuesday8:30 AM – 6:30 PM
Wednesday8:30 AM – 6:30 PM
Thursday8:30 AM – 6:30 PM
Friday8:30 AM – 6:30 PM
Saturday8:30 AM – 6:30 PM
SundayClosed

Wheelchair-accessible entrance and parking at every office.

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