The dirver's side wiper blade (1950 3100- Has new electric 2 speed motor)moves to the left side and at full run will hold-up and then go off the glass and lock up the motor. When I remove the driver's side wiper arm it seemed to run ok. But then it locked again. The pivot parts at the end of the linkage arm look like they are not in the correct positions. Is this a repairable fix or are new linkage arms with new assemblies required. Sometimes it will run fine for 2-3 min. Tom
