HELP disc brake swapping

I replaced the drums in my 67 Barracuda with 74 spindles and upper control arms and had no problem. My calipers are on the rear of the spindle and aligned OK. I did go with new tubular UCL's to get a better ride. I believe swapping the sides won't make any difference. On another note, my new Pontiac is 1 deg off on the passenger side. They had a time getting it that close, never been hit.