2014–2026 Ram 2500/3500 4WD Front Fox 2.5 Performance Series HTO Shocks (3"–4" Lift)

Upgrade your suspension with the FOX 2.5 Performance Series HTO shock, engineered for increased damping capacity, improved ride quality, and superior control both on and off-road. This bolt-on shock features position-sensitive technology, vehicle-specific valving, and a larger 2.5-inch shock body with increased piston size to deliver enhanced performance under demanding conditions. Built with a durable aluminum body and precision internal components, it is designed to perform under extreme conditions while maintaining reliability. The Type II anodized aluminum body efficiently dissipates heat while resisting corrosion, and the internal floating piston (IFP) design separates shock oil from high-pressure nitrogen to prevent aeration and ensure consistent damping. FOX’s Hydraulic Top Out (HTO) technology adds position-sensitive rebound control, reducing harsh top-outs and improving comfort by slowing shaft speed through a secondary shim stack—especially beneficial for vehicles running heavier tires or lift setups beyond OEM specifications.

Key Features

FOX 2.5 Performance Series HTO shock
Hydraulic Top Out (HTO) technology for position-sensitive rebound control
Larger 2.5-inch shock body with increased damping capacity
Vehicle-specific valving for optimized performance
Internal floating piston (IFP) design for consistent damping
Type II anodized aluminum body for heat dissipation and corrosion resistance
Bolt-on installation with no major modifications required

Performance Benefits

The FOX 2.5 HTO shock is designed to handle increased vehicle weight, larger tires, and lifted applications while maintaining ride comfort and control. The added damping capacity and position-sensitive rebound control help stabilize the vehicle, reduce harsh suspension behavior, and improve overall drivability in both on-road and off-road conditions.

Specifications

Series: Performance
Shock Body: 2.5” Impact Extruded 6061-T6 Aluminum
Body Finish: Type II Clear Anodized
Shaft Size: 5/8” Hard Chrome
Damping: High-Flow Velocity-Sensitive
Internal Design: Internal Floating Piston (IFP)
Top-Out Control: Hydraulic Top Out (HTO) Piston
Travel: 8.89”
Extended Length: 26.19”
Compressed Length: 17.3”
Top Mount: Stem
Bottom Mount: Eyelet

Installation

Estimated Install Time: 1–2 hours
Difficulty Level: Easy to Moderate

Direct bolt-on design using factory mounting locations.

Fitment

2014–2026 Ram 2500 (4WD) – Front – Fits 3"–4" Lift
2014–2026 Ram 3500 (4WD) – Front – Fits 3"–4" Lift

Fits all trim levels including: Big Horn, Laramie, Limited, Longhorn, Lone Star, Outdoorsman, Power Wagon, SLT, ST, Tradesman

Notes

Sold individually
Mounting hardware may vary by application
Designed for front suspension only
Ideal for lifted vehicles and heavier wheel/tire setups