Superlift Suspension K164F Lift Kit with FOX Performance IFP Shocks - 4-Inch 2.0

The Superlift K164F is a complete 4-inch suspension lift kit engineered specifically for the 2017–2022 Ford F-250 and F-350 Super Duty 4WD diesel trucks. Designed using OE CAD data, this bolt-on system delivers a commanding stance while preserving factory ride quality and OEM alignment specifications.

Front lift is achieved via engine-specific coil springs that provide the correct lift height without compromising ride characteristics. Radius arm lowering brackets restore the proper OE caster angle to prevent premature tire wear. Additional front components include front compression travel-stop relocation brackets, a track bar relocation bracket to prevent stud bind and steering wheel kick, and a steering stabilizer bracket.

In the rear, a fabricated high-grade steel lift block replaces the factory block, maintaining proper pinion and axle angle while reducing axle wrap.

This kit includes FOX Performance Series 2.0 IFP shocks front and rear. These shocks feature a 5/8-inch hard chrome plated, heat-treated alloy steel shaft and a 2-inch diameter CNC-machined 6061-T6 aluminum shock body for increased cooling capacity. The Internal Floating Piston (IFP) mono-tube design separates shock oil from the high-pressure nitrogen-charged gas chamber to eliminate oil aeration for maximum performance. Shocks are finished in a durable clear-anodized coating for lasting durability.

What's Included:

• Engine-specific front coil lift springs
• Radius arm lowering brackets
• Front compression travel-stop relocation brackets
• Track bar relocation bracket
• Steering stabilizer bracket
• Fabricated steel rear lift blocks
• FOX Performance Series 2.0 IFP front and rear shocks

Key Features:

• Provides 4 inches of front and rear lift
• Accommodates tires up to 35 x 12.5 on 20-inch wheels
• Retains OEM caster and camber alignment specifications
• Maintains factory ride quality and handling
• Designed using Original Equipment (OE) CAD data for precise fitment
• Made in the USA

Important Notes: If equipped with a 2-piece rear driveshaft, a carrier bearing spacer (Superlift #9649) is required. If equipped with factory top-mount overload leaf springs, longer U-bolts (Superlift #11724) are required. Does not fit models equipped with the Auto Leveling Headlight function.