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The workhorse of many fleets is the flagship ASC line of self-steering auxiliary lift axles. The full self-steering capability allows the wheels to track around the tightest corner and reduce loads on the frame. Engineered with a lightweight design that is robust enough to handle the most demanding conditions! The ASCS line now features the newly engineered horizontal lift bag design, available in either the 20,000 lb or the NEW!! 13,200 lb capacity option. The 13,200 lb option replaces the previous 15,000 lb option that is no longer offered. ASCS suspensions are designed to accommodate many frame widths and frame heights to fit virtually any truck application.