[willyscj]

Thanks I appreciate the replies, but I stiill couldn't depress the piston. I took it down to Kragen Auto Parts and they produced a disc brake tool kit that had a device that clamped on to the caliper and allowed you to screw the piston in clockwise while applying pressure. I screwed around with this for two days and the right tool took 30 seconds. It's great building and driving a Cobra, I learn something everyday.
By the way the guys at Kragen are incredibly helpful.