This article details a suspension upgrade for a 2003 Toyota 4runner Limited V8 4WD with a collapsed XREAS system. The owner successfully replaced the system with parts from a 2nd and 3rd generation Tacoma, resulting in a significant improvement in ride height and performance. This guide will outline the process and parts needed for a similar upgrade on your 2003 Toyota 4Runner.
Direct Bolt-on Suspension Upgrade for the 2003 Toyota 4Runner
The original XREAS suspension system on this 2003 4Runner, with 280,000 miles, had completely failed. Research revealed that front suspension components from a 2nd or 3rd generation Tacoma are a direct fit for the 4th generation 4Runner.
Collapsed XREAS Suspension on a 2003 Toyota 4Runner
This project utilized front struts (shocks and springs) from a 2019 Tacoma TRD Off-Road, providing factory Toyota Bilstein shocks. Rear shocks were also sourced from a 2017 Tacoma TRD Off-Road, again with Toyota Bilstein shocks. New rear springs for a 2007 FJ Cruiser were purchased from RockAuto. The total cost for used Tacoma parts and new FJ Cruiser springs was approximately $450. Note: If your 4Runner has the rear air ride height leveling system, you’ll need a conversion kit, like the one from MetalTech 4×4, to eliminate the air bags. This particular 4Runner did not have that system.
Front Struts and Rear Shocks for a Toyota Tacoma
Necessary Modifications for 2003 4Runner Suspension Upgrade
The Tacoma rear shocks require a minor modification to fit the 4Runner. A new lower bushing is needed for the lower shock mount where it connects to the axle. The recommended part is the Energy Suspension 9.8108G 3/4″ Hourglass Shock Eye Bushing, readily available online.
Energy Suspension 9.8108G 3/4" Hourglass Shock Eye Bushing
Comparison of New and Old Rear Springs
Installation and Results of the Tacoma Suspension on a 2003 4Runner
The installation process is straightforward, involving standard suspension replacement procedures.
Removed XREAS Suspension System
After installing the Tacoma and FJ Cruiser components, the 2003 4Runner regained proper ride height. The upgrade resulted in a 3-inch lift compared to the collapsed XREAS system, showcasing the extent of the original system’s deterioration. The new setup delivers a soft, smooth ride both on and off-road, effectively restoring the 4Runner’s suspension to a like-new condition.
2003 Toyota 4Runner After Suspension Upgrade
This cost-effective upgrade, utilizing readily available used Tacoma parts, offers a viable solution for revitalizing the suspension of a 2003 Toyota 4Runner. Searching online marketplaces like eBay or Craigslist can help you source the necessary components. Remember to factor in the cost of the rear shock bushings for a complete and successful installation.
