I just replaced the wiper motor on my 68 (it had never worked since I obtained the car) I have tightened the 3 mounting screws to the firewall but noticed that when turned on the wiper motor itself is moving in reaction to the movement of the wiper arms. The 3 mounting screws are fairly tight (did not want to over-tighten them).
Is the motor itself supposed to move when the wipers are on and moving ?
