65 Barracuda Disc Brake Conversion Help Needed

Here is what I have.
74 Duster 10" Drum spindles
Wilwood disc brake conversion kit for 65 Barracuda with 10" drums
Tubular UCA'S from PST
Entire from end rebuild kit from PST for a 65 Barracuda

I'm having problems with the Lower ball joints not working with the spindles. If I get some ball joints for a 74 Duster will that be the only thing I need for everything to work together properly?
Anything else I'm missing?
Thanks in advance!