It's important to have your Commercial Operator's Rail set up properly. Without all the necessary hardware you could be setting your self up for disaster! The LiftMaster K75-10259 Track Spacer is available for purchase through North Shore Commercial Door. This repair part installs on the rail assembly and ensures that the rail maintains the proper distance for the trolley to move up and down the rail efficiently.
In the past this item has been known as part numbers 7510259, and K71-10325.