Gyraline taps into the power of the iPhone to create a very accurate DIY alignment tool.

Few things can make you more furious than a rock flying up and chipping your windshield. Not only does it make your car look janky, but it can also impact your visibility and be a safety hazard.

Since this is Car Craft, where do-it-yourself rules, we just know you secretly harbor an intense desire to get familiar with the basics of alignment and at least know what all those obscure terms mean ...