mike maraio

I have a 1968 302 which was originally a 6 cylinder then converted over I just had the transmission rebuilt then when i took it for a test drive around the block it made a noise and would pull to the left. Mechanic said it needs new front wheel bearings not that big of a deal but upon further inspection the front disc brakes were ready to fall apart. he said he is having issues finding the right part for the brakes...rotors, calipers, pads etc. he said that you cant just use any 5x4.5 rotor it would need to be same brand or kind. here is a picture of the brake assembly and also what rear end is this thanks. Im new to this so go easy on me.
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