This 4 Inch system is designed to lift your Ford Super Duty. 4 Inch front leaf springs provide room for 35 Inch tires. This system uses a custom progressive pack for ultimate ride quality, while providing 4 Inch of lift.
This system comes with a 1.75 Inch bump stop spacer (not pictured) to prevent spring fatigue during the suspension cycle. Also included in this kit is 4 Inch rear block kit, with 15 Inch U-bolts for a leveled stance.
This system is the ideal for all Super Duties.
Features and Benefits:- Increased wheel travel
- Durable powder coat finish
- Less body-roll than stock truck
- Isolates Stock springs for Factory Like Ride Quality
- No change in towing capacity
- No drive shaft modifications needed
- 100 Percent Bolt-on system - no drilling, cutting or welding necessary for install
- Bushings Included: Yes
- Grade Type: Performance
- Leaf Spring Leaf Quantity: 12.0
- Maximum Lift: 4.0 Inch
- Mounting Hardware Included: Yes
- Oem Wheels & Tires Fitment: Yes
- Recommended Aftermarket Tires: 35 Inch X 12.50 Inch (Larger Tires May Fit But Fender Trimming And Modifications Will Be Required.)
- Recommended Aftermarket Wheels: Icon Alloys - 20x9 Inch W/ 5.25 Inch Backspace / 6mm Offset, Icon Alloys - 18x9 Inch W/ 5.25 Inch Backspace / 6mm Offset, Icon Alloys - 17x8.5 Inch W/ 5 Inch Backspace / 6mm Offset
- Shocks Included: No
- Spring Color: Black
- Spring Material: Steel








