• 9-leaf progressive rate leaf springs
  • Steering correction for improved handling
  • Levels stance and allows for up to 37in tires
  • Great ride quality on/off-road
  • 100% Bolt-On

Quick Specs:

  • Front Lift Height 6in
  • Rear Lift Height 4in
  • Material Cast Iron
  • Front Lift Method Leaf Springs
  • Rear Lift Method Add-a-Leaf & Block
  • Lift Type Lift Kit
  • Wheel Size 16 x 10
  • Back Spacing 4in
  • Max Tire Size 37 x 12.5
  • Finish Powdercoat
  • Metal Cutting Required No
  • Rear Lift Height & Method 4in Rear Lift Blocks
  • Accommodates Factory Wheels See Notes
  • Welding Required No


  • Add-A-Leaf Kit - Rear
  • Leaf Springs - Front
  • Rear Lift Blocks
  • Track Bar Relocation Bracket
  • Pitman Arm

Important Notes:

  • Will not fit vehicles manufactured before 03/01/1999
  • May need front driveline modification
  • Dually applications will require different rear u-bolts
  • Gas models will net more lift in the front than advertised


Zone Offroad 1999-2004 Ford Super Duty 4wd 6in 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 inflippedin 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 5in blocks replace the factory components and add-a-leafs help get the last little bit of lift needed for a level ride stance.

Brand: Zone OffRoad

  • 1999 Ford F250



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