4-Inch Lift Kit with 4-Link Conversion

The BDS Suspension 4-inch lift kit is engineered to significantly enhance the stance, performance, and capability of 2005-2007 Ford F250 and F350 Super Duty diesel trucks. This comprehensive kit features a 4-link conversion up front, replacing the factory radius arms to optimize suspension geometry for superior handling, increased strength, and enhanced stability. The conversion utilizes robust 1/4-inch steel brackets and includes heavy-duty upper and lower control arms to ensure correct axle positioning and limit caster changes throughout suspension travel. Steering geometry is corrected with a forged drop pitman arm and a heavy-duty track bar drop bracket, keeping the steering angles optimized and the front axle centered. In the rear, the kit incorporates high-strength lift blocks and longer u-bolts to achieve the desired lift and maintain proper pinion angles. Buyers can choose between NX2 Nitro shocks, featuring a nitrogen-charged, twin-tube design with 10-stage valving, or FOX 2.0 Performance Series shocks, which offer an aluminum body, IFP monotube design, and application-specific valving for maximum performance. This kit is designed for an easy, 100% bolt-on installation, though it is rated as moderate difficulty and estimated to take 8 hours. Recommended tire and wheel combinations include 35-inch tires with 17, 18, or 20-inch wheels with 4.5 inches of backspace. It's important to note that specific rear leaf spring configurations (with or without factory overloads) must be identified before ordering, and the factory rear block must be removed.