Ok, I just finished mounting '65 Mustang 4 piston calipers onto my '63 econoline spindles. Now that I have bled the brakes, and stepped on the brake pedal a few times, the rotors are locked up and won't turn by hand. These were used chrome calipers that I installed. Should the calipers back off enough on their own, to enable the rotor to spin freeley? Do I need new calipers? I am expecting the worse.

Thanx thecrowx