This brand-new air spring won’t need much attention until it’s worked for many miles and its rubber bag ages through contact with the elements. Its operating range is 40 to 100 psi. Photo: ContiTech ...

Every modification in the custom car industry goes through a maturing process. Air springs are not immune to that same cycle of things. I'm not exactly sure how far air springs go back, but I know ...

A number of different shock absorber designs are available, but the fundamental operation of each is the same. Shocks are basically multiple-chambered cylinders, with one or more orifices between ...

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When pulling together all the components for a kit car, a buyer has to make myriad decisions on the quality versus the price of each part. This is the only way to build a car that has the ...

The location of the holes. That's the only difference between a water gun and a shock absorber. Although they do very different things, the squirt gun and the shock absorber work on the same principle ...

To shed some light on what magic goes on inside the tubes under your 4x4, why some shocks cost $20 and others cost $200 and, most importantly, what you need to know to figure out what's right for you, ...