Fairly easy to get at. The Central valves are bolted on to the front side of the spare tire well. From the C.Valves there are two criss crossing hydraulic (exact same as hard brake lines) criss crossing to each of the front struts. I unbolted the central valves and pulled all of the hydraulic lines, actually cut the lines in multiple places to pull them out easier. Some of the lines in the rear pass behind the fender liners and are easier to pull when the fender liners (rear) are removed. It is much easier to do on a lift.