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Fox Suspension

FOX 2.0 Performance Suspension System for Toyota 4Runner (2003–2009)

$1,259.90
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FOX 2.0 Performance Suspension System for 4th Gen 4Runner (2003–2009)

Built for the trail. Tuned for the road. Ready for adventure.

Whether you're crawling slickrock, running high-speed fire roads, or just building a rig that looks the part and performs even better—this suspension system gives your 4th Gen 4Runner the balance of control, comfort, and capability it deserves.

This listing includes a complete high-performance front suspension setup, with the option to upgrade the rear based on how hard you push your rig.


What’s Included – Front Suspension

Purpose-built for the 2003–2009 Toyota 4Runner, this FOX 2.0 front suspension system is tuned for daily driveability while unlocking real off-road potential. Whether you're in the V6 or V8, this kit is ready to bolt in and get to work.

Front Shock Specs:

  • Extended Length: 23.80"
  • Collapsed Length: 14.70"
  • Stroke: 9.10"
  • Designed Lift Range: 0–1.5"
  • Material: Aluminum body with IFP (Internal Floating Piston)

Key Features:

  • Improved drop-out travel and trail control
  • Smooth and stable on-road handling with less sway
  • Fully serviceable FOX shock bodies for long-term durability
  • Aluminum construction dissipates heat better than steel
  • CNC-machined billet aluminum reservoir clamps included
  • Tuned specifically for 4th Gen 4Runners

Rear Suspension Options

Standard Rear Shocks – Everyday Performer

  • FOX IFP design for oil/gas separation
  • Aluminum construction to manage heat
  • Tuned for balance and control
  • Low-maintenance and ready for long miles

Reservoir Rear Shocks – Heat Management Boost

  • External reservoirs for thermal stability
  • FOX racing oil for consistent performance
  • Heavy-duty 5/8” chrome shafts
  • Hourglass bushings for articulation and flex

Adjustable Reservoir Rear Shocks – Tunable Trail Control

  • 8-position compression adjusters
  • External reservoirs with billet clamps
  • Zinc-plated alloy body, fully serviceable
  • Maximum ride control, from crawl to haul

Fitment – 4th Gen 4Runner (2003–2009)

This kit is a direct bolt-on solution for all trims and drivetrains of the 4th Gen Toyota 4Runner—no spacers, trimming, or fab work required.

Confirmed Fitment:

  • 2003–2009 Toyota 4Runner V6
  • 2003–2009 Toyota 4Runner V8

FAQ

Q: Does this kit fit both 2WD and 4WD 4Runners?
A: Yes, it's a direct bolt-on for all 2003–2009 Toyota 4Runners—regardless of drivetrain.


Q: Can I run this with my stock rear shocks?
A: You can, and the front suspension will still install and perform great. However, we recommend upgrading the rear shocks for proper ride quality, performance, and longevity.
Important: If your 4Runner has X-REAS suspension—which comes standard on the Sport Edition and was optional on some Limited trims—you must replace the rear shocks when replacing the front. X-REAS links all four corners with hydraulic lines, and disconnecting one end disables the whole system.

How to tell if your Limited has X-REAS:
Look behind your front and rear shocks—if you see small hydraulic lines running from the shocks to metal junction blocks mounted on the frame or crossmember, your rig has X-REAS.


Q: Do I need aftermarket upper control arms (UCAs)?
A: Not for this setup. It’s tuned for up to 1.5" of lift and works with your stock UCAs. If you plan on going beyond that in the future, UCAs are worth upgrading.