overview
This 4.5" System for the 2008-2010 Super Duty is one of the best riding suspension systems ICON has ever developed. This system has been engineered using the highest quality materials and components. The dual rate front coil springs combined with our ICON 2.5 Aluminum Series shocks give these trucks the performance they so desperately need. This system comes complete with front coils, shocks, radius arm drop down brackets, rear blocks, U-bolts, and our patented adjustable track bar giving the front end of these trucks perfect track alignment.
features & Benefits
- 50% increase in wheel travel
- 100% bolt-on system - no drilling, cutting or welding necessary for install
- Less body-roll than stock truck
- 4.5" more travel from ride height to front bump stops
- 2.5 Aluminum Series shocks feature one-piece impact extruded aluminum cylinders for excellent corrosion resistance and consistent finish
- Dual rate coil springs
- Lifetime guarantee that coil springs won’t sag
- Clears 35" tall tires & 37" tall tires w/ minor trimming
- No change in towing capacity
- No drive shaft modifications needed
download installation guide
Tech Info:
- OEM Wheels & Tires Fitment: Yes
- APPLICATION NOTE #55: Shocks Are Fully Serviceable. Coilover Heights Indicated Are For A Stock Equipped Vehicle
- Ships in multiple boxes
- 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 #6: Springs Are Rated For Diesel Engines Only
- APPLICATION NOTE #21: Not Applicable On Vehicles Equipped With A Manual Transmission
- APPLICATION NOTE #28: Pinch Weld On ‘05-’10 Superduty Radius Arms May Come In Contact With Radius Arm Drop Bracket Hardware
- APPLICATION NOTE #31: ‘08 - Current Superduty Models With Gas Engines May Need Exhaust Modified To Clear Front Driveshaft
System Components:
- 64040 (QTY: 1) | 05-10 FSD RADIUS ARM DROP KIT
- 64050 (QTY: 1) | 08-UP FSD FRONT 4.5" BOX KIT
- 64035 (QTY: 1) | 05-16 FSD ADJ TRACK BAR W/FK ROD END
- 37601P (QTY: 1) | 99-UP 3-6" FSD REAR 2.5 VS IR PAIR
- 67610P (QTY: 1) | 05-UP FSD 4WD 4.5" FRONT 2.5 VS IR PAIR
- 37002 (QTY: 1) | 99-10 FSD REAR 17" U-BOLT KIT
- 64010 (QTY: 1) | 05-19 FSD FRONT 4.5" DUAL RATE SPRING KIT
- 195275 (QTY: 1) | 99-UP FSD 5" BLOCK KIT
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the wheels
![Icon Vehicle Dynamics - Add Wheels?](/images/utility/upsell-wheels.png)