Designed for extreme durability and performance, the ALPHA HD PRO™ Series comes with stainless steel hardware and integrated jounce bumpers/bump stops. The flexible polyurethane bumper inside the air spring prevents bottoming out, which could damage the springs, and allows operation at 0 psi when unloaded for factory ride comfort. It is ideal for users who want the peace of mind of an internal bumper and improved ride control whether towing or not towing.
For those who require maximum bag travel and enhanced control when off-roading, towing, launching boats, or lowering the rear to hook up trailers, the ALPHA HD air bag system delivers strong load-leveling capability up to 5,000 lbs.
