ICON Toyota 07+ FJ Cruiser / 03+ 4Runner Rear Shock Update
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At ICON Vehicle Dynamics we are constantly looking for ways to develop new products or improve existing offerings. When our engineers sought to implement our CDC Valve technology into our 07-UP Toyota FJ / 03-UP Toyota 4Runner 2.5” rear shocks, it was clear that some changes were needed to make this a more realistic feature. Until now, the ICON Vehicle Dynamics 2.5” rear shocks for these applications used a 5” piggyback reservoir configuration. While this design worked extremely well, our search for efficiency and performance led our engineers to utilize a 7.5” remote reservoir, allowing the ICON CDC Valve to be a viable upgrade for these shocks. This new shock layout of our 57810 and 57810C has superseded the older piggyback 57710 design as of January 1st, 2014.

The new shock hose length and reservoir placement has been strategically engineered to retain maximum off-road capability while placing the reservoir in a conveniently accessed location. Rather than crawling under the vehicle to make trail-side CDC adjustments, users can now comfortably reach inside the rear wheel well to dial in ride quality for peak off-road performance. While these shocks now feature a larger reservoir for CDC integration and better cooling capability, the new ICON FJ and 4Runner 2.5” rear shocks retain all features of the previous design and remain 100% rebuildable and revalveable.
57810 Features
- 2.5″ diameter shock body with 7.5” remote reservoir
- 7/8” NitroSteel® shaft
- Stem to eye construction ensures OE fitment and easy installation
- Increased wheel travel over stock
- Industry-exclusive bump zone built in
- Large FK bearing for longevity, minimal deflection, and no binding
- 100% rebuildable and revalvable
- Made in the USA
- Supersedes ICON Part #57710
57810C Features
- CDC Valve provides 10 external user-adjustable compression settings
- Large adjuster knob with positive stops allows easy adjustments, even with gloves on
- 2.5″ diameter shock body with 7.5” remote reservoir
- 7/8” NitroSteel® shaft
- Stem to eye construction ensures OE fitment and easy installation
- Increased wheel travel over stock
- Industry-exclusive bump zone built in
- Large FK bearing for longevity, minimal deflection, and no binding
- 100% rebuildable and revalvable
- Made in the USA

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