FOX Performance Series Shocks

2014–2025 Ram 3500 6.7L Diesel, 6.4L 392, 2014–2018 Ram 3500 5.7L Hemi

Part #: 987-24-027

Overview

The FOX 2.5 Performance Series Smooth Body IFP HTO Shock is engineered to elevate the ride quality and handling of your Ram 3500 truck. Designed specifically for rear suspension setups with a 0 to 1.5-inch lift, this shock absorber integrates FOX’s race-proven internal floating piston (IFP) technology to deliver consistent damping performance across a wide range of driving conditions. Whether you’re navigating rugged off-road terrain or cruising on the highway, these shocks provide a balanced combination of comfort and control.

Built for Ram 3500 models equipped with 6.7L Cummins diesel, 6.4L HEMI 392, and 5.7L HEMI engines (2014–2025 for diesel and 6.4L, 2014–2018 for 5.7L), this shock is an ideal upgrade for owners seeking enhanced suspension response without sacrificing ride smoothness.

Key Features

FOX Performance Series shocks incorporate advanced technology and durable construction to improve your vehicle’s suspension system. Key features include:

• 2.5-inch smooth body design for increased strength and reduced weight
• Internal Floating Piston (IFP) technology for superior damping control and heat dissipation
• High-Temperature Oil (HTO) formulation to maintain consistent performance under extreme conditions
• Optimized valving tuned specifically for Ram 3500 rear suspension with light lift (0–1.5 inches)
• Durable construction designed to withstand harsh off-road environments and heavy-duty use
• Improved ride comfort on-road with predictable handling off-road
• Direct fitment for easy installation without modifications
• Corrosion-resistant finish for long-lasting durability

Construction & Design

The FOX 2.5 Performance Series shock features a smooth body tube crafted from high-strength materials to ensure durability and resistance to impact and corrosion. The internal floating piston separates the oil and nitrogen gas chambers, preventing foaming and maintaining consistent damping performance even during extended use. The high-temperature oil formulation further enhances shock reliability by reducing fade caused by heat buildup during demanding driving conditions.

Precision valving is calibrated to match the rear suspension characteristics of lifted Ram 3500 trucks, providing a controlled and responsive ride. The shock’s robust design supports both heavy payloads and off-road abuse, making it a dependable upgrade for serious truck enthusiasts.

Installation & Fitment

This FOX shock is designed as a direct replacement for the rear shocks on 2014–2025 Ram 3500 models with 6.7L diesel, 6.4L 392, and 2014–2018 5.7L HEMI engines. It supports lift heights from 0 to 1.5 inches, allowing for minor suspension modifications without compromising fitment or performance. Installation requires standard hand tools and can typically be completed in under an hour per side by a professional or experienced DIYer.

No additional modifications or special equipment are necessary, ensuring a straightforward upgrade that enhances your truck’s suspension capabilities while maintaining factory mounting points.

What's Included

• One FOX 2.5 Performance Series Smooth Body IFP HTO Rear Shock
• Mounting hardware as required for direct fitment
• Installation instructions

Ideal For

This shock is perfect for Ram 3500 owners who demand improved ride quality and handling without sacrificing durability. It suits those who use their trucks for a mix of daily driving, towing, hauling, and off-road adventures. Whether you have a lightly lifted truck or are maintaining a near-stock ride height, the FOX 2.5 Performance Series shock delivers enhanced control and comfort tailored to your vehicle’s specific suspension setup.

FOX (RideFOX) is a top-tier suspension brand producing high-performance shocks and components for trucks, UTVs, and motorsports applications. Known for race-proven engineering and tunability, FOX products are built to handle harsh impacts, high speeds, and demanding off-road conditions while keeping the vehicle controlled and composed.