Overview

This 6" system is designed to lift your Ford Super Duty by replacing the front and rear leaf springs. 6" front & rear leaf springs provide room for 35" tires. This system uses a custom progressive pack for ultimate ride quality, while providing 6" of lift. This system comes with a 1.75" bump stop spacer (not pictured) to prevent spring fatigue during the suspension cycle. This kit is ideal for Ford Super Duties with worn out leaf springs.

Tech Info:

• OEM Wheels & Tires Fitment: Yes
• Recommended Aftermarket Wheels: ICON Alloys | 17x8.5 with 5" Backspace / 6mm Offset
• Recommended Aftermarket Wheels: ICON Alloys | 20x9 with 5" Backspace / 0mm Offset
• Recommended Aftermarket Tires: 35:" x 12.50" (Larger tires may fit but fender trimming and modifications will be required.)
• APPLICATION NOTE #1: FRONT U-BOLT NOTE: ALL FRONT SPRINGS COME COMPLETE WITH FRONT U-BOLTS, WASHERS, AND NUTS. WHEN ORDERING ANY FRONT SPRING SYSTEM FROM ICON VEHICLE DYNAMICS PLEASE SPECIFY MANUFACTURE YEAR.
• APPLICATION NOTE #3: NO FRONT DRIVESHAFT MODIFICATION NEEDED. STOCK DRIVESHAFT IS FULLY FUNCTIONAL.
• APPLICATION NOTE #6: SPRINGS ARE RATED FOR DIESEL ENGINES ONLY
• APPLICATION NOTE #8: THIS SYSTEM MAY REQUIRE A CARRIER BEARING DROP BRACKET KIT (33700)
• APPLICATION NOTE #17: THESE ARE STAND-ALONE KITS AND ARE NOT TO BE USED IN CONJUNCTION WITH ANY OTHER AFTERMARKET KITS

Features & 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% Bolt-on system - no drilling, cutting or welding necessary for install

System Components:

• 31020 (QTY: 1) | 00-04 FSD FRONT 4-8" BOX KIT
• 33100 (QTY: 1) | 99-04 FSD 1.375" BUMP STOP SPACER KIT
• 37004 (QTY: 1) | 99-10 FSD REAR 12" U-BOLT KIT
• 138508 (QTY: 2) | 99-07 FSD 5" REAR LEAF SPRING PACK
• 138509 (QTY: 2) | 00-04 FSD FRONT 6" LEAF SPRING PACK
• 37001 (QTY: 1) | 00-04 FSD FRONT SEMI ROUND U-BOLT KIT

Installation Instructions & Docs

• 31020
• 33100
• Warranty