Air suspension: it helps keeps your truck stance level despite variable loads, eliminating back end sag / squat, keeping your headlights on the road (not pointing up to the sky) and maintains your power and braking performance. But which type of air bag is best for your truck? Double convoluted? Single convoluted? Sleeve style? Maintain your Alpha Wolf status by boning up on air spring basics in Pacbrake Podcast 002.