An air compressor that raises the air-suspension seats in off-highway vehicles uses injection-molded plastic parts instead of those made with die-cast aluminum. The compressor, from Thomas Industries, ...

The trucks sold in today’s consumer market are tougher than commercial trucks just a decade back, with the strongest pickups comfortably hauling nearly 8,000 pounds. The key downside to those new ...

Every car has some combination of springs, shocks, bars, or links that suspends its chassis, body, engine, and drivetrain above its wheels. Get rid of any of it and the ability to accelerate, turn, ...

This isn’t a buyer’s guide. This is a hands-on overview of some of the air-up systems the staffers of Jp magazine have used in the real world. We selected them, we installed them, and we used them.