A sea-change in hot-rod suspensions is sweeping across the scene: replacing conventional metal suspension springs with air springs, often controlled by sophisticated air compressors and self-leveling ...

Air springs have only been part of the mainstream rodding scene for about a decade, yet they're already almost as common as dropped axles and whitewall tires. This is not too surprising, considering ...

Air springs are to suspension systems what vacuum-secondary carbs are to engines. Catch a glimpse of vacuum-secondaries under the hood of a hot rod and you'll automatically assume the motor's a turd.