my calipers are to big they hit on the lower control arm ?

Hi I have a disk brake set up I am putting on my 67 barracuda 73 and up and the calipers hit on the lower control arm where the brake line is on the caliper . do they make a smaller caliper , for that set up for a 67 barracuda

A picture would be really helpful. Some years of the calipers are not compatible, what was the source vehicle? The spindles can be swapped side to side as well to move the calipers from the front to the back, but the bleeders on the calipers have to be on top either way.