Video: How a Twin-Tube Shock Works
When it comes to shock/strut construction, the two most popular designs are twin-tube and monotube. Our pals at Summit Racing made a good video comparing/contrasting the two—you can watch it here. In a daily-driven vehicle, the twin-tube design is typically the most common, as it delivers an excellent balance of performance and price. To give
Suspension Tuning Suggestions: A Talk with a Koni Automotive Product Manager
The Koni roadshow pulled into Summit Racing’s retail store this week to chat with folks about the merits of proper suspension tuning. We got a chance to sit down with Lee Grimes, an Automotive Product Manager with Koni (and a racer himself with decades of track experience), to get his take on performance trends, suspension
Parts Bin: Roadster Shop SPEC Chassis
The foundation of a vintage vehicle build is the frame. Any damage, whether its from rust or a wreck, can cause havoc when its time to get the car roadworthy. And it’s not like you can go to a junkyard and salvage a frame from a 50-year-old vehicle and expect it to be in good
Video: What are Subframe Connectors and Why Do You Need Them?
Before we get into the importance of subframe connectors, let’s first talk about what vehicle subframes are. What is a Subframe? A subframe is a discrete structural component in vehicles. That’s a fancy way of saying that a subframe is separate from the vehicle frame (in a body-on-frame configuration), or separate from a vehicle’s body shell
Video: Shock/Strut Installation Tips
Every gearhead is going to need to know how to replace shocks and struts in their vehicle eventually. And though installing new dampers or springs may seem like a straightforward affair, it’s really not. The fine folks at KYB put together this handy video that’s chock-full of helpful tips and pointers to ensure your install
What is a Wishbone Suspension and How Does it Work?
When someone tells you their car or truck has a “wishbone suspension,” it’s not turkey-talk. They’re referring to a specific type of suspension design that allows the vehicle’s wheels to move, adjust, and adapt to quickly changing road and driving conditions. Though there are several other suspension types, the wishbone (or double-wishbone to be exact) is
Video: Why Switch to Polyurethane Mounts and Bushings?
The rubber in your ride’s bushings and mounts doesn’t last forever. Even in vehicles that don’t see a lot of miles, rubber will simply deteriorate due to age. The effect is gradual, so you may be riding on worn-out rubber mounts and not really feel it. A failing mount or bushing will deliver a poor
Video: How to Measure for the Right Shock Fit on Your Car or Truck
Travel, compression, rebound, ride height—you’ve got a lot of factors to consider when installing aftermarket shock absorbers. Thankfully, the suspension experts at QA1 can explain what you need to know before buying any parts. In today’s video, the QA1 team covers how to set up ride height, which will ultimately help determine what type and
Why Leveling Shocks Outperform Coil Spacer Kits in Off-Roading
A lot of truck and SUV owners choose coil spacer kits to add an inch or two of lift to their vehicles. They are a cost-effective solution, and viable if you’re mostly going to be driving around town under typical street-use conditions. But when off-road driving, coil spacers can alter the factory suspension geometry which
Video: Strength Testing Hollow Vs. Solid Sway Bars
Are solid sway bars stronger than hollow sway bars? It’s a frequently asked question from people preparing to make upgrades to their vehicle’s suspension because upgrading to a high performance sway bar is among the fastest, easiest, and most cost-effective ways to improve handling and control on a muscle car or classic vehicle. As you’ll see
- 1
- 2




Stay Connected