— ABOUT US
Built for the Road Ahead.
Built for the Road Ahead.
At HD Shocks, we recognized the need for a high-performance, serviceable shock designed specifically for the demands of heavy-duty vehicles. HD Shocks are developed for applications including RVs and Super C motorhomes, semi trucks, commercial and work trucks, service trucks, heavy haulers, specialty vehicles, and heavy-duty pickups.
Our goal is simple: improve suspension control, stability, and ride quality by matching the shock to the vehicle, its weight, suspension configuration, and how it is actually used.
HD Shocks are manufactured by King Shocks and use proven monotube shock technology adapted and tuned for demanding heavy-duty applications.
Application-Specific Engineering
A motorhome, work truck, semi, and heavy hauler can have very different suspension requirements, even when they share similar chassis components. That is why HD Shocks are selected and tuned around the application rather than relying on a one-size-fits-all approach.
Our heavy-duty shock designs use large-diameter monotube construction with an internal floating piston (IFP). HD Shocks are rebuildable, serviceable, and tunable, allowing them to be maintained and adjusted as application requirements change.
Proven Across Heavy-Duty Applications
HD Shocks are used on RVs and Super C motorhomes, semi trucks, commercial fleets, service trucks, heavy haulers, specialty vehicles, and heavy-duty pickups.
Real-world customer and fleet experience, vehicle testing, application development, and shock dyno testing continue to help us refine shock configurations for the vehicles and industries we serve.
Built to Be Serviced, Not Thrown Away
HD Shocks are designed with long-term serviceability in mind. Rather than treating the shock as a disposable component, our shocks can be rebuilt, serviced, and re-tuned.
Whether the vehicle spends its life on the highway, carries heavy loads, operates commercially, or travels thousands of miles as an RV, our focus remains the same: develop the right shock for the application and support it for the road ahead.
— Top-Quality Shocks for Every Vehicle —
From 3/4-ton trucks to semis and Class A RVs, we've got you covered.
— Built for Heavy-Duty Applications —
Why Choose HD Shocks?
Application-Specific Tuning
HD Shocks are selected and tuned around vehicle weight, suspension configuration, and real-world use rather than relying on a one-size-fits-all approach.
Large-Diameter Monotube Design
Our monotube IFP shock designs use large-diameter bodies for increased oil capacity and piston area in demanding heavy-duty applications.
Rebuildable & Serviceable
HD Shocks are designed to be serviced, rebuilt, and re-tuned, providing a serviceable alternative to conventional disposable shocks.
Real-World Development
Customer feedback, fleet experience, vehicle testing, application development, and shock dyno testing help us evaluate and refine HD Shocks configurations.
Manufactured by King Shocks
HD Shocks are manufactured by King Shocks using precision components and manufacturing processes backed by decades of performance suspension experience.
Applications Across Industries
HD Shocks are used across RV and Super C motorhome, semi truck, commercial and work truck, service truck, heavy hauler, specialty vehicle, and heavy-duty pickup applications.
— REAL WORLD CUSTOMER EXPERIENCE —
Hear from Our Customers
HD Shocks customers use our products across RV and Super C motorhomes, semi trucks, commercial vehicles, service trucks, heavy haulers, and pickup applications. Read verified customer feedback about real-world ride, handling, stability, installation, and long-term experience with HD Shocks.
— WHAT YOU NEED TO KNOW —
Frequently Asked Questions
What makes HD Shocks different from standard shocks?
HD Shocks are large-diameter monotube IFP shocks developed specifically for heavy-duty applications. Fitment and tuning are selected around factors such as vehicle weight, suspension configuration, and intended use. HD Shocks are also rebuildable, serviceable, and tunable.
How do I find the correct HD Shocks for my vehicle?
Start with your vehicle year, make, model, chassis, suspension configuration, and current shock information. Some heavy-duty vehicles use different shock configurations even within the same model, so additional measurements or OEM shock numbers may be needed to confirm the correct application.
Can HD Shocks improve ride and handling on an RV or heavy truck?
Shocks control suspension movement. Properly selected and tuned shocks can improve suspension control and help reduce excessive bouncing, porpoising, and body movement. Results vary depending on the vehicle, suspension, tires, loading, and other chassis components.
What is the difference between HD Shocks 2.5 and 3.0 Series?
The 2.5 and 3.0 Series use different shock body and piston sizes, providing different oil capacities and damping capabilities. The best choice depends on the vehicle, weight, suspension, use, and available fitment rather than simply choosing the largest shock.
Are HD Shocks rebuildable and serviceable?
Yes. HD Shocks are designed to be rebuilt and serviced. They can also be re-tuned when needed, allowing the shock to be maintained rather than treated as a disposable component.
How long do HD Shocks last, and when should they be serviced?
HD Shocks are rebuildable and designed for long-term use in heavy-duty highway applications. Based on our experience, we believe approximately 200,000 miles is a reasonable service target for many primarily highway-driven applications, although actual service life depends on vehicle weight, road conditions, duty cycle, and use. We also have HD Shocks currently in service with customers reporting more than 300,000 miles of use. Because HD Shocks are rebuildable and serviceable, they can be inspected, serviced, and rebuilt as needed rather than simply discarded.