I have a 1968 Charger R/T with a 440. My power steering pump was leaking and a shop changed it out. After 2 were sent they said they finally received the correct one. Well I drove it home and found the belt is rubbing on the pulley now. What is the width of the correct pulley that is suppose to be on my car? Trying to figure out if the wrong pulley is on there or if they installed the wrong pump.