Zone Offroad 1999-2004 Ford Super Duty 4wd 6" Suspension System.
The newest offering for the leaf-sprung Super Duties is built around massive 9-leaf full height front leaf springs. The leaf springs thin, multi-leaf design provides a great ride while maintaining heavy-duty nature of the Super Duty. By making the springs out of 9 leafs we are able to keep the spring arch low which improves the ride. In addition, when the springs get loaded down, all of the leafs engage in a progressive nature and hold up to the added weight without sagging.
To make the steering function as well as the springs, a dropped pitman arm and track bar relocation bracket are included. Bump stop relocation brackets keep the suspension from compressing too far and a choice of front Hydro or Nitro shocks keep the ride smooth and controlled.
For the 2000-2004 models, the factory sway bar is retained, utilizing the factory mounts ability to be "flipped" at the frame. For 1999 models, new sway bar links are provided - which accounts for the slightly higher kit price. In the rear, full-height 5" blocks replace the factory components and add-a-leafs help get the last little bit of lift needed for a level ride stance.
Featured Technology & Benefits
9-leaf progressive rate leaf springs
Steering correction for improved handling
Levels stance and allows for up to 37" tires
Great ride quality on/off-road
100% Bolt-On
Important Notes!
*Kit images show upgraded Nitro (black) shocks*
Dually applications will require different rear u-bolts
Vehicles with 2-pc rear driveshaft require carrier bearing drop kit #F5401
Will not fit vehicles manufactured before 3/1/99
May need front driveline modification
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.
This product fits the following applications:
99 Ford F250 4WD
00-04 Ford F250 4WD
99 Ford F350 4WD
00-04 Ford F350 4WD
Quick Specs
Front Lift Height: 6?
Front Lift Method: Spring
Rear Lift Height: 4?
Rear Lift Method: Block & Add-a-Leaf
Install Time Hrs: 6-8 hrs
Difficulty Level 1-5: 2
Wheel Size: 17x9
Back Spacing: 4.5?
Max Tire Size: 37x12.50
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