Differences Between Shocks, Struts, and Coilovers

Summary

In this video, Shawn from Shock Surplus explains the different types of suspension components: shocks, struts, coilovers, and quick struts. He clarifies the terminology and differences between these parts, emphasizing that they are all types of shock absorbers, but with different functions. Struts support the vehicle’s weight, while quick struts offer a pre-assembled, convenient solution. Coilovers provide adjustable suspension for performance vehicles. Shawn assures viewers that while terminology may vary, it's not crucial when searching for parts. He encourages viewers to reach out for help with selecting the right suspension components.

Takeaways

• 😀 **Struts and shocks are both shock absorbers**, but struts also support the vehicle's weight, while shocks only absorb energy and don't carry weight.
• 😀 **A quick strut is a pre-assembled unit** that includes the shock absorber, coil spring, and upper mounting parts, making it easier to install.
• 😀 **Struts typically have a coil spring resting on them**, with the spring bearing the weight of the vehicle. This is different from traditional shocks.
• 😀 **KYB's quick strut is an all-in-one solution**, combining the shock absorber with the necessary parts for mounting the coil spring, which can simplify the replacement process.
• 😀 **Struts are often more complex than shocks** because they help support the weight of the vehicle, not just absorb shocks.
• 😀 **A coilover is a shock absorber enclosed by a coil spring**, and it can be adjusted for ride height, making it popular among automotive enthusiasts.
• 😀 **Coilovers are adjustable**, allowing you to customize your vehicle's ride height, providing more control over the suspension setup.
• 😀 **Some vehicles use both struts and shocks**, with struts often being used on the front suspension and shocks in the rear, though some vehicles may use struts all around.
• 😀 **Double coilovers feature two coil springs** with a middle perch for more advanced suspension setups, offering extra precision in handling.
• 😀 **When searching for suspension parts, terminology can be confusing**, but searching for 'shocks' will often yield results for both struts and quick struts, simplifying your search.

Q & A

What is the main difference between a strut and a shock absorber?

A strut is essentially a shock absorber with additional components, such as a coil spring and mounting hardware, which support the vehicle’s weight. A shock absorber, on the other hand, is a simpler component designed primarily to dampen the up-and-down motion of the vehicle without supporting the vehicle's weight.

What are quick struts, and how do they differ from regular struts?

Quick struts are fully assembled struts that include the shock absorber, coil spring, and top hat, making them easier to install. Traditional struts often require the user to install the coil spring and top hat separately, making quick struts a more convenient option for certain applications.

Why is the coil spring important in a strut assembly?

The coil spring is crucial because it supports the full weight of the vehicle. If the coil spring or any part of the strut assembly fails, the vehicle's weight could cause significant issues with handling and safety.

What happens if a strut fails in a vehicle?

If a strut fails, especially the shock absorber or coil spring, it can cause handling issues, uneven tire wear, and poor vehicle stability. The vehicle might also lose its ability to absorb shocks, resulting in a rougher ride.

Are struts and shocks used interchangeably in vehicles?

No, struts and shocks are distinct components. While both are shock absorbers, struts serve a structural role in the suspension system, often supporting the vehicle's weight, while shocks primarily control the vehicle's up-and-down motion.

What is a coilover, and how is it different from a quick strut?

A coilover is a shock absorber with an integrated coil spring, but unlike quick struts, coilovers typically allow for adjustable height and can be used for performance tuning. Quick struts, on the other hand, are pre-assembled for convenience and are generally used for standard replacement.

What is the advantage of adjustable coilovers for vehicles?

Adjustable coilovers allow vehicle owners to change the height of the vehicle, which can improve handling, performance, and appearance. This flexibility makes them popular for car enthusiasts who want to fine-tune their vehicle's suspension system.

Can a coilover be used on all types of vehicles?

Coilovers can be used on a variety of vehicles, including trucks and cars, but the design may differ depending on the application. Different vehicles require different types of coilovers to ensure proper fitment and performance.

What does the term 'coilover' actually mean?

The term 'coilover' refers to a shock absorber with a coil spring mounted over the shock body. The coil spring is typically adjustable, allowing the height and ride characteristics of the vehicle to be fine-tuned.

What is the benefit of using KYB's quick strut over a traditional strut?

KYB's quick strut is beneficial because it comes fully assembled, saving time and effort during installation. This all-in-one unit simplifies the replacement process, making it easier for technicians and DIYers to install without needing to install the coil spring separately.