Superlift K644/K644B 8" Suspension Lift Kit

Superlift K644/K644B 8
1309.13In stock

2000-2004 F-250/F-350 Super Duty 4WD Diesel

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Product Details

This 8" Superlift'suspension system is built around massive 9-leaf full height front leaf . The leaf springs multi-leaf design provides a great ride while maintaining heavy-duty nature of the Super Duty. By making the springs out of 9 leafs SuperLift is able to keep the spring arch low which greatly improves the ride. The leafs have durable Poly spring bushings and Teflon inserts between each leaf to ensure a quiet and smooth 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. Add in the Nitro shocks and this Superlift 8" kit offers one of the smoothest, controlled rides available for your Super Duty!

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2000-20044WDFordF-250 Super Duty Diesel
2000-20044WDFordF-350 Super Duty Diesel


  • Springs incorporate military-wrapped spring eyes and anti-friction pads between leafs
  • Track bar relocation bracket prevents steering wheel "kick"
  • New front anti-sway bar hardware maintain factory bar geometry
  • Functional front compression travel stops prevent over-compression and provide a more progressive spring rate; factory rear travel-stops are relocated
  • Rear lift via 5" blocks and add-a-leaf
  • Front / rear shocks included
  • Lifetime Warranty
  • Satisfaction Guarantee

Important Notes

  • Rear lift based on vehicles with 2.5" tall factory. If vehicle equipped with 3.5" tall factory block expect slight rear to front rake.