ICON Vehicle Specific 2.5 Aluminum Series shocks are designed and built to give your vehicle outstanding performance off-road and a smooth ride on the street. These shocks are configured for each application in both length and damping tune.
ICON Vehicle Specific (V.S.) 2.5 Aluminum Series shocks are designed and built to give your vehicle outstanding performance off-road and a smooth ride on the street. These shocks are configured specifically for each application in both length and damping tune. Like all ICON shock absorbers, V.S. 2.5 Aluminum Series shocks are 100% rebuildable and 100% revalveable. For piggyback and specific remote reservoir applications, ICON’s unique use of a 6061 billet aluminum manifold a few inches below the top cap of the shock creates an internal “Bump Zone” that when used creates an additional 20% of damping force. This additional force helps prevent harsh bottom outs and controls the suspension when compressing at high velocity. If you are looking for a more user defined tune, consider looking into the Compression Damping Control Valve (CDCV).
  • ICON’s internal “Bump Zone” increases damping by 20% to provide more control as the shock approaches full compression
  • PTFE lined spherical bearings and application specific mounting hardware
  • 6061 aircraft grade aluminum CNC machined components
  • One-piece impact extruded aluminum cylinders offer excellent corrosion resistance and consistent finish
  • 100% Rebuildable
  • 100% Revalveable
  • All ICON 2.5 Series Piggyback and Remote Reservoir shocks can be upgraded to ICON’s Compression Damping Control Valve (CDCV)
  • Remote reservoir design improves heat dissipation to reduce shock fade during prolonged use
  • Premium grade 5WT shock oil for consistent suspension damping along a wide temperature range
  • Nitrogen charged monotube design with piggyback reservoir
  • One piece digressive piston design with vehicle specific valving for unsurpassed performance and ride quality on and off-road
  • 7/8” diameter induction hardened, chrome plated shock shaft

Information:

TECH NOTE: Compatible with 3-6" of rear lift over stock

Application Summary:

Year Make/Model
1999-2025 Ford F-250 Super Duty
1999-2025 Ford F-350 Super Duty

This item is a component of the following packages: K63113, K67203, K67103, K64562, K64552, K64502, K63133, K63123, K63153, K67303, K67113, K67114R, K67114

Attributes
AAP_UDA_12 EA
AAP_UDA_22 1
AAP_UDA_4 55
Active or Passive Suspension Passive
Adjustable NO
Adjustable Compression No
Adjustable Damping No, No
Adjustable Rebound No
Boot Included NO
Bore Diameter 2.25
California Proposition 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Country of Origin (Primary) US
Cylinder Color Silver, Silver
Cylinder Diameter 2.5, 2.5
Cylinder Material Aluminum, Aluminum
Damping Type Oil, Oil
External Reservoir Yes, Yes
GTIN 00840103402505
Gas Charged Yes
Grade Type Performance, Performance
Harmonized Tariff Code (Schedule B) 8708807000
Hazardous Material Code N
Life Cycle Status Code Available to Order
Lower Mount Type Eyelet, Eyelet
Mounting Hardware Included Yes
NAFTA Preference Criterion Code C
Reservoir Type Piggyback
SDR Required Flag N
Service Parts 252011 - 2.5 PIGGYBACK/REMOTE RESI/BYPASS REBUILD KIT, 257344 - 7/8 SHAFT 18.85 OAL, 14.00 TRAVEL
Shaft Diameter 0.875, 0.875
Shaft Material Chrome, Chrome
Shock Absorber Body End Measuring Point Center of Eylet
Shock Absorber Rod End Measuring Point Center of Eylet
Tube Outside Diameter 2.5
Upper Mount Type EYELET
Valving Type Digressive
Warranty Time 1

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ICON Vehicle Dynamics 37701P 99-25 FSD 3-6" REAR 2.5 VS PB PAIR

Product Information

This item is a component of the following packages: K63113, K67203, K67103, K64562, K64552, K64502, K63133, K63123, K63153, K67303, K67113, K67114R, K67114

Vehicle Fitment