Rear lift provided by a 4 Inch Steel Block Kit + Add-A-Leaf (With Overload) — for trucks equipped with top-mounted overload springs. The Add-A-Leaf features a multi-leaf progressive design that reduces axle wrap, creates a more controlled and stable feel, and maintains factory payload weight ratings.
Equipped with NX2 Nitro Series shocks featuring a nitrogen-charged twin-tube design, 10-stage velocity-sensitive valving, dual-welded ends, 1-3/8-inch high-flow piston, self-lubricating seals, and a silver powder coat finish.
Overview
This 6-inch radius arm lift kit from BDS Suspension is designed for 2005–2007 Ford Super Duty F250 and F350 diesel trucks, providing clearance for up to 37-inch tires while improving stance, performance, and off-road capability. Up front, the kit includes diesel-specific 6-inch lift Pro-Ride coil springs, heavy-duty tubular replacement radius arms, a forged drop pitman arm, track bar bracket for steering correction, sway bar relocation hardware, and brake line brackets. The rear kit is available in multiple configurations using high-strength fabricated steel lift blocks with longer U-bolts and brake line brackets, or an upgraded 6-inch rear leaf spring option for a level stance.
Features
- 100% bolt-on installation
- Diesel-specific Pro-Ride dual-rate coil springs for correct lift height and a smooth, predictable ride across various terrains
- Heavy-duty tubular steel radius arms that correct caster and maximize ground clearance; mount in factory location with OE-style rubber bushing at the frame mount
- Caster adjustment compatible with a wide range of lift heights
- Track bar relocation bracket and forged drop pitman arm maintain proper steering angles
- Sway bar relocation hardware and brake line brackets included
- Fabricated high-strength steel lift blocks with correct pinion angles and longer U-bolts
- Standard NX2 Nitro shocks with vehicle-specific valving
- Available upgrade to FOX 2.0 Performance Series shocks
- Multiple rear lift configurations to suit trucks with or without factory top-mounted overload springs
Specifications
- Front lift height: 6 inches
- Rear lift height: 4 inches (block kit configurations) or 6 inches (leaf spring option)
- Tire clearance: up to 37 inches
- Radius arms: high-strength tubular steel construction
- Lift blocks: fabricated steel, high-strength
- Fitment: 2005–2007 Ford F250 / F350 Super Duty 4WD Diesel
Installation
- Estimated Time: 8 hours
- Difficulty: Moderate
- Tools Required: Grinder/Sanding Disc, Drill/Bit Set, Pitman Arm Puller
Important Notes
- Removal of the factory block is required.
- Installation of the rear block kit will result in a "pre-runner" look with the rear of the vehicle 2 inches lower than the front. To achieve a level stance, upgrade to the rear leaf spring option.
- These trucks were manufactured with and without top-mounted overload springs on the rear leaf springs. A top-mounted overload is an extra leaf separate from the pack that sits above the main leaf. You must identify which configuration your vehicle has before ordering.
- If your vehicle is equipped with a carrier bearing, you will need to order part #123402 in the options section.
- Although extremely rare, front driveline vibration may occur.
- Front exhaust modification may be required to clear the front driveshaft on gas models.
- U-bolts will not fit dually models.
- Dropped pitman arm will not fit 10-lug wide track F350 models.
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