72 duster 9' drum to disc help

well what i was really wanting to knw is if the wilwood swap kit for 9' inch drums fits cragar ss 08/61 14 inch rims. i just bought tires and rims for the rear new and i just dont want to have to sell them and go to 15 inch >.< id like to go with wilwood if i can other wise i thought about being werid and having 15s in front and 14s in rear lol i knw that sounds dumb but if i have too.