Hi guys - Trying to find out what is used between the wiper cam arm that attaches to the back of the wiper motor (over the stud) and the other end attaches to the long arm of wiper linkage that runs in the cowl area and attaches to the drivers side wiper arm assembly. I assume some sort of nylon washer so there is no metal on metal contact, and then a retining clip to slip over the linkage shaft. Does anyone have a picture of what I need? Mine is missing. Thank you!