Important Notes
- Dually applications will require different rear 3-7/8" I.D. u-bolts.
- Will not fit vehicles manufactured before 3-1-1999 with 5/8" track bar bolt head size.
- Vehicles equipped with 2 piece rear driveshafts may require the carrier bearing to be lowered.If vehicle is equipped with rear top mounted overload springs 4 of u-bolt part number UBT4035 may be required. Selecting the Ubolt option below will add four (4) UBT4035s to the base kit.
- Trucks equiped with gas engine may achieve a slightly higher front stance.If truck is equipped with curved/radiussed style front ubolts order kit # F1. If truck is equipped with square style front ubolts order kit # F2
Features
- New front leaf springs with bolt style leaf alignment clamps, anti-friction pads, OE style rubber bushings and tapered leaves for long term performance and great ride qualtiy1-1/4".
- Solid steel track bar with urethane mounts to properly center the axle
- New front & Rear U-bolt with high nuts & washersRear 3" Block kit
- Performance custom valved Zone Shocks included
Manufacturer's Description
Climb up and stand out from the crowd with this 4" Lift Kit that will have you clearing 35" tires. You'll definitely make a statement with this complete with leaf spring & block lift for your 4WD 1999 Ford F-250 / F-350.
Options
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.
Shock Option
Nitro Series
- Nitrogen-charged
- Twin-tube design
- 10-stage velocity-sensitive valving
- Dual-welded ends for increased strength
- Self-lubricating seals
- Black powder coat finish
FOX 2.0 Adventure Series
- 2-inch diameter steel body
- Internal floating piston (IFP) monotube design
- Large 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
