FOX is a world leader in high-performance suspension systems, renowned for engineering that transforms how vehicles handle the toughest terrain. Rooted in decades of motorsport dominance, FOX brings its racing heritage to the automotive sector with a relentless drive for precision, control, and durability. From desert racing to daily driving, their suspension technology is designed to meet the demands of enthusiasts, professionals, and manufacturers alike. FOX automotive products are more than just components, they are the result of rigorous testing, advanced materials, and a deep understanding of how vehicles interact with the road and beyond. By working closely with OEMs and elite racing teams, FOX delivers solutions that balance comfort with capability, ensuring peak performance whether on the highway, in the dunes, or across rock-strewn trails.
FOX Factory Race Series 3.0 Internal Bypass shocks for the Toyota Tundra deliver position-sensitive damping technology, Dual Speed Compression (DSC) adjustment, and high-speed ready performance in a bolt-on kit.
Patented Internal Bypass technology allows for multiple zones of damping control. The result is a comfortable, confident ride with increased damping capacity through rough terrain. Internal bypass shocks produce more force progressively to control hard bottom-outs, prevent harsh top-outs, and provide an initial catch for landing.
Shock fluid bypasses the main Piston through a Series of bleed holes in the ride zone.
As the shock extends past the ride zone in rebound or compression, the bleed holes terminate, forcing fluid through the main Piston.
A Recirculating Reservoir Bridge enables the continuous exchange of shock fluid between the finned external Reservoir and Body using a checked port, keeping shock temperatures cool for better performance. Type III anodization prevents corrosion and wear of the 3-inch diameter aluminum bodies.
Dial in your Tundra for load, environment, and driving style with the DSC adjuster.
FOX Internal Bypass shocks deliver the support and confidence you need while driving high-speed through rugged terrain. Experience race-bred performance next time you leave the pavement.
Features
- 3.0 Inch impact extruded and CNC machined 6061-T6 Type III anodized aluminum Body
- Patented, internal bypass design
- Application-specific springs
- 7/8 Inch hard chrome-plated steel Shafts
- Vehicle-specific tuning maximizes performance
- Redundant sealing pack system: main seal, wiper seal, scraper seal
- Finned Reservoir, with DSC adjuster
- Travel9.97
- Extended Length 26.25
- Compressed Length 16.28
- Top Mount Stem
- Bottom Mount Eyelet
- Fitment Notes Rear Lift: 1 - 2 inches Requires extended brake lines
Installation Notes:
Professional installation is recommended.
Specifications:
Lift Height: 1-2 Inch.
Material: Aluminum.
Sold As: Pair.
Universal: No.
Shock Type: Internal Bypass.
Collapsed Length: 16.28.
Extended Length: 26.25.
Shock Mount: Stem/Eyelet.
Series: Factory Race 3.0.
Reservoir Type: Recirculating Remote.
Travel Length: 9.97.
Adjustable: Adjustable.
Location: Rear.
Fitment & Application:
| Fitment Position | Rear |
|---|---|
| Brand | Fox |
| Part Number | FOX-88326142 |
| Shipping Method | UPS/FedEx/USPS Ground |
| California Prop 65 Warning |
|

This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or reproductive harm. For more information, visit https://www.p65warnings.ca.gov/