thanks for the add to site I am in need of the round 2 piece throttle /shift cable retainer that secures the cable in a 1976 mercury 500 with mercruiser remote control it is a black piece of hard plastic about 5/8th or 3/4 in diameter and the cable goes between the 2 pieces and is secured by 2 ridges in the pieces .I cannot find any reference to theses and am not sure what they are called any help would be greatly appreciated i am in need of at least one piece of a pair one got lost and i cannot find anything that will work a part # a used one anything would help alot . Thanks in advance David