1993 Mercury Brake problem on 1993 Mercury Grand Marquis

Ok so I have picked up this weird problem. The car has 68,000 miles on it, today the front right brake caliper locked up and is pulling the car to the right side. It doesn't matter if you press the brake or not its dead locked to the rotor. From what I can tell it's only that side (front right.) I would like to know what would cause that to happen to such a low milage car! I'm in the process of restoring it and any help would be great. Thanks!

Asked by for the 1993 Mercury Grand Marquis
Replace the flex brake hose at the same time! That can cause this too. In fact if you open the bleeder screw does the fluid come out and release that rotor? Better check it!!
1 more answer , 1 more comment
It's just a frozen caliper, replace it.
Should I go with both sides, or just the locked one?
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