On you A are you use the electric windshield wiper or vacuum. My electric wiper motor mount for the armature fell apart the motor was useless. I started thinking about finding another motor that would fit in the housing. Turns out an old Eldon slot car motor is 12v and has a gear on it that matches the gear in the wiper transmission. Wedged it with foam rubber in field coil of original motor works great been about 5 years now no problem necessity mother of invention