Every vehicle comes with an axle gear ratio number, but not everyone knows why it's important. Here's how to read the ratio ...
In this edition of Play Smart, top-ranked long-drive pro Colton Casto explains how to generate more power with your drives.
We hung out with Clay Millican’s Parts Plus Top Fuel dragster to learn what it takes to go from 0 to 330 mph in under four seconds.
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