Superlift K234F 6-Inch 4-Link Suspension Lift Kit with Fox Performance Series 2.0 IFP Shocks

The Superlift K234F is a complete 6-inch suspension lift kit engineered for 2008–2010 Ford Super Duty F-250 and F-350 4WD diesel trucks. This kit features a full 4-Link conversion designed to maximize suspension performance, improve tire clearance, and deliver a commanding, aggressive stance while retaining excellent on- and off-road drivability.

At the heart of this kit are Superlift's precision-engineered, heavy-duty tubular 4-Link arms that bolt directly into the factory mounts. These arms incorporate press-fit REFLEX bushings for superior vibration dampening, flexibility, and long-term durability. The 4-Link geometry limits caster change throughout the suspension cycle, optimizing both suspension control and tire wear.

Up front, the kit includes diesel-specific rate front coil springs engineered to support the added weight of diesel powerplants while maintaining a smooth, predictable ride. A track bar relocation bracket is included to ensure proper steering geometry, prevent stud bind, and eliminate steering wheel kick. In the rear, a precision-fabricated rear lift block replaces the factory block and allows for correct pinion and axle angle while reducing axle wrap.

These aluminum monotube shocks feature a 5/8-inch hard chrome-plated, heat-treated alloy steel shaft and a 2-inch diameter CNC-machined 6061-T6 shock body for increased cooling capacity. The Internal Floating Piston (IFP) design separates shock oil from the high-pressure nitrogen gas chamber, eliminating oil aeration for consistent, maximum-performance damping in any condition.

Kit Highlights:

• 6 inches of front and rear suspension lift
• Heavy-duty tubular 4-Link arms with press-fit REFLEX bushings
• Diesel-specific rate replacement front coil springs
• Track bar relocation bracket for proper steering geometry
• Fabricated rear lift block — replaces factory block, corrects pinion and axle angle, reduces axle wrap
• Fox Performance Series 2.0 IFP Shocks — front and rear
• Designed using OE CAD data for precise fitment
• Compatible with OE stability control — no warning lights
• Backed by Superlift's limited lifetime warranty
• Detailed step-by-step installation manual included

Installation Notes: If the vehicle is equipped with a 2-piece rear driveshaft, a carrier bearing spacer (Part #9649) is required. For Super Duty trucks equipped with 1-7/8" blocks and top overloads, Part #11664 must be purchased separately. For most applications, no major cutting, welding, or drilling is required.