Idler arm problem? Please help

According to the Moog chassis catalog : 68-72 Darts take a K-7042 idler and 73-76 take a K-7086 at the other side of the draglink(centerlink) the pitman arm is a K-7074 EXCEPT for 383 Darts-no number is given. I am curious to know if the draglink is different on 383 cars if the pitman arm is also different-perhaps a different bend at the idler end???????
Hope this is helpful.......