hello, i have a 70 dart swinger it has drum brakes on the front and i would like to convert to disc's i found spindels roater the problem is i dont no if the fit the gentalman that has them was going to use them on a 63 barricuda and beleives they will fit(i heard there interchangeable) i'm trying find a parts number or find a way to see if they will fit before i buy them if any one could help me out it would be appreated ... thank you :read2: