Important Notes
- These trucks were manufactured with two different style front u-bolts. You will need to know if your front leaf spring u-bolts are square or are half way between round and square with a gentle radius around the OE cast u-bolt plate before ordering.
- Vehicles produced before 3/1/99 require a different box kit. You must check the production date on the door prior to ordering.
- The Superduty came from the factory with a 2", 3", or 4" rear block. If you wish to truly level your vehicle it may be necessary to change the rear OE block.
- Will not fit dually applications.
- These trucks were produced both with and without a top mounted over load spring. There is an extra leaf that mounts on top of the rear leaf pack. You will need to know how your truck is equipped before ordering.
- If your vehicle is equipped with a carrier bearing, you will want the 123402 drop kit in the accessories section.
Features & Benefits
- Easy, 100% Bolt-on installation
- Glideride leaf springs to provide full lift height and increased capacity
- Track bar relocation bracket and pitman arm maintains proper steering angles for improved handling
- Cast steel blocks provide level stance from front to rear
- Standard NX2 Nitro shocks with vehicle-specific valving for better control
- Upgrade to FOX 2.0 Performance Series shocks for maximum performance on and off-road
Update the style of your 1999-2004 Ford F250 and F350 Super Duty diesel truck with this 4-inch lift kit from BDS Suspension. Designed to improve stance, performance, and capability, this kit includes everything necessary to set your truck up right with clearance for up to 35" tires.
Up front the lift kit includes Glide-Ride leaf springs, forged drop pitman arm and track bar bracket for steering correction, sway bar links, bump stop brackets and precision tuned NX2 or FOX nitrogen charged shocks.
In the rear this kit utilizes a high-strength lift block, longer u-bolts and a matching set of NX2 Nitro or FOX Performance shocks.
Glide-Ride Leaf Springs
Built to outperform, BDS engineered the Glide-Ride leaf springs into a multi-leaf progressive spring rate design that provides a smooth ride with any load. This is accomplished with an exclusive triple-stage leaf spring design. Upgrading to BDS Glide-Ride leaf springs will provide flexibility throughout the suspension cycle.
Steering Correction
To optimize steering geometry once lifted, a forged drop pitman arm is used to minimize the steering angle and pair it with a heavy duty track bar drop bracket to keep them in phase through suspension travel while recentering the front axle.
Recommended Tires & Wheels
(Trimming may be required)
- 35 x 12.5 with 16 x 8 and 4 in. Backspace
Front U-Bolt Type
This vehicle was manufactured with either square front U-Bolts or radiused front U-bolts. Typically, 1999-2000 are square and 2001-2004 are radiused, but that is not always the case. The radiused U-bolts aren't square or round, but rather have a gentle radius that matches a cast factory upper U-bolt plate on top of the factory spring. Vehicles manufactured prior to 2-28-99 require yet another different box kit due to a change in the factory track bar. Please make the appropriate selection for your particular vehicle.
Rear Lift Option
Select rear box kit based on whether or not your RAM has factory Rear Overload Leaf.
Shock Option
NX2 Nitro Series
- Nitrogen-charged
- Twin-tube design
- 10-stage velocity-sensitive valving
- Dual-welded ends for increased strength
- 1-3/8-inch high-flow piston
- Self-lubricating seals
- Silver powder coat finish
FOX 2.0 Performance Series
- 2-inch Impact extruded aluminum body
- Internal floating piston (IFP) monotube design
- CNC machined 6061-T6 aluminum mounting ends
- Massive 5/8-inch hard chrome plated heat-treated alloy steel shaft
- Race-developed high-flow piston design
- Application-specific valving to maximize performance
- Long-lasting clear anodized finish
