Zone Offroad 6 inch Suspension Lift Kit 1999 to 2004 Ford F250/F350

ZON:F42N
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Special order, normally ships in 7 to 14 days

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.

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

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

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 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.