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

Part #: 55540

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:

• Boosted Ground Clearance: Sail over rocks, ruts, and road debris with extra ride height for unstoppable off-road confidence.
• Factory Track Width Retained: Keep the OEM stance you love while enjoying a taller, more capable setup.
• OEM Wheel Compatibility: Fits 18-inch or larger factory wheels so you can upgrade without buying new rims.
• Perfect Front-to-Rear Leveling: Eliminates that nose-down look, creating a balanced, aggressive profile.
• Heavy-Duty Fabricated Blocks: Welded steel blocks outlast cast alternatives, delivering unmatched strength and longevity.
• Anti-Axle-Wrap Rear Blocks: Special design preserves stock ride quality while stopping the wheel hop common with ordinary lift blocks.
• Fully Configurable with Shock/Strut Options: Choose from our nitrogen-charged N3's to the M1 Monotube's for the perfect ride quality.