ICON 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. They feature remote reservoirs and are 100% rebuildable/revalveable.
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. ICON's exclusive Compression Damping Dual Speed (CDXS) valves are included for precisely dialing in your suspension performance. CDXS controls fluid flow under compression, with independent adjustability of high speed and low speed compression force. 10 discreet detented settings for both low and high-speed adjustment knobs allow separate adjustments for handling response and overall aggressiveness.
  • Compatible with 0-3.5" of front lift over stock
  • Remote reservoir design improves heat dissipation to reduce shock fade during prolonged use
  • ICON CDXS equipped for independent adjustability of high speed and low speed compression force for handling response and aggressiveness
  • Premium grade 5WT shock oil for consistent suspension damping along a wide temperature range
  • 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
  • Press in, bonded rubber bushing/bar pin assembly damps road vibration and provides OE factory type fitment
  • 6061 aircraft grade aluminum CNC machined components
  • One-piece, hard anodized, impact extruded aluminum cylinders offer excellent corrosion resistance and consistent finish
  • 100% Rebuildable
  • 100% Revalveable
  • Extended travel length requires aftermarket front upper control arms and provides maximum wheel travel
  • ICON’s internal “Bump Zone” increases damping by 20% to provide more control as the shock approaches full compression
  • Nitrogen charged monotube design with remote reservoir

Information:

APPLICATION NOTE #298: Compatible with 0-3.5" of front lift on most Chevrolet Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD submodels. Compatible with 0-2" of front lift on Chevrolet Silverado 2500 ZR2 and GMC Sierra 2500 AT4X.

Application Summary:

Year Make/Model
2011-2026 Chevrolet Silverado 2500 HD
2017-2018 Chevrolet Silverado 3500
2011-2026 Chevrolet Silverado 3500 HD
2011-2026 GMC Sierra 2500 HD
2011-2026 GMC Sierra 3500 HD
Attributes
AAP_UDA_12 EA
AAP_UDA_22 1
AAP_UDA_4 55
Active or Passive Suspension Passive
Add-On Part 252012 - -4 TO -10 HOSE SHIELD KIT, 77202 - 20-26 GM HD FRONT SPLASH GUARD KIT
Adjustable Yes
Adjustable Compression Yes
Adjustable Damping Yes
Adjustable Rebound No
Boot Included NO
Bore Diameter 2.25
California Proposition 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Compressed Length 14.08
Country of Origin (Primary) US
Cylinder Color Gray
Cylinder Diameter 2.5
Cylinder Material Aluminum
Damping Adjustment Type Dual Speed/Manual
Damping Type Oil
Extended Length 19.61
External Reservoir Yes
Gas Charged Yes
Grade Type Performance
Harmonized Tariff Code (Schedule B) 8708807000
Hazardous Material Code N
Life Cycle Status Code Available to Order
Lower Mount Type Clevis
Mounting Hardware Included Yes
NAFTA Preference Criterion Code C
Reservoir Type Remote
SDR Required Flag N
Service Parts 252001 - 2.5 FIXED SPANNER WRENCH, 252003 - SEAL INSTALL TOOL 2.5/3.0
Shaft Diameter 0.875
Shaft Material Chrome
Shock Absorber Body End Measuring Point Flats on Bar Pin
Shock Absorber Rod End Measuring Point Center of Clevis Holes
Stroke Length Front 5.53
Tube Outside Diameter 2.5
Upper Mount Type Bar Pin
Valving Type Digressive
Warranty Time 1
GTIN 00840103436258