My windshield wipers did not work when I needed them yesterday. When I opened the grille in front of the windshield, I saw the wiper motor with a nut on the shaft. The long wiper arm was sitting in the drain well unconnected. It appears to me that this long arm does not connect directly to the wiper motor shaft but there must be a shorter arm that does and helps to rotate that long arm. Am I correct and where can I get the rest of the wiper assembly so the wipers will work? If I am incorrect, does this long arm connect directly to the wiper motor shft? Thanks!