Through an accelerated testing process dubbed the “ICON1K” R&D program, ICON has logged over a thousand miles in the dirt pushing the JL to off-road extremes to identify limiting factors in OE components, develop products that remove these limits, and further extrapolate performance out of this vehicle. This 2.5” suspension system has been tweaked, tuned, and revised several times over the course of this ICON1K testing in an effort to provide unparalleled ride quality and vehicle dynamics for everything from rock crawling to high-speed desert running.
 
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
TECH INFO:
OEM Wheels & Tires Fitment: Yes
Recommended Aftermarket Wheels: ICON Alloys | 17x8.5" w/ 5.00” Backspace / 6mm Offset
Recommended Aftermarket Wheels: ICON Alloys | 18x9" w/ 5.25” Backspace / 6mm Offset
Recommended Aftermarket Wheels: ICON Alloys | 20x9" w/ 5.25” Backspace / 6mm Offset
Recommended Aftermarket Tires: 35:" x 12.50" (Larger tires may fit but fender trimming and modifications will be required.)
APPLICATION NOTE #3: NO FRONT DRIVESHAFT MODIFICATION NEEDED. STOCK DRIVESHAFT IS FULLY FUNCTIONAL.
APPLICATION NOTE #5: 2001-2004 3” AND 4.5” HANGER KITS COME COMPLETE WITH A NEW REPLACEMENT FRONT CROSS-MEMBER. THIS CROSSMEMBER REPLACES THE FACTORY CROSSMEMBER
APPLICATION NOTE #17: THESE ARE STAND-ALONE KITS AND ARE NOT TO BE USED IN CONJUNCTION WITH ANY OTHER AFTERMARKET KITS
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
34099 (QTY: 1) | 99-04 FSD 4.5" HANGER KIT
34050 (QTY: 1) | 99-04 FSD 4.5" BASH BAR KIT
195275 (QTY: 1) | 99-UP FSD 5" BLOCK KIT
37002 (QTY: 1) | 99-10 FSD REAR 17" U-BOLT KIT