The Greg Smith Equipment Sales' Atlas 'wheels free' scissor alignment lift, No. 12AWFSL, features a built-in jack system. This method is a perfect quick lift for a perimeter framed or unibody vehicle, according to the company. The wheels free runway jack system has an air actuated lock system. When fully extended, the system elevates to over 17" above the runway. System complements any GSES Atlas alignment machine.