67 to 74 disc brake conversion, PLEASE HELP!!!

Ill post pics as soon as I can, I am pretty sure the upper control arms are on the right side I think I put the calipers on wrong I will try and swap them next time I get a chance, I was also thinking about getting some 15x7 rims do think that will solve my issue, also what is everyone's thought about wheel spacers, getting mixed emotions from people about them

You shouldn't be hitting any where unless you have a ton of backspace on the wheels.It should be leaving a mark from rubbing if so where is the mark located?You will need longer wheel studs if you put on spacers