Turn the piston clockwise and it scews itself in...
You have to use a special tool to turn the piston in clockwise. The tool has two pins which match the two recess holes on the piston. Since the caliper is also the emergency brake you cannot just c clamp the piston back into the caliper bore. you should be able to rent the tool at your local autozone or autoparts store.
Use a "C" clamp.
Unlike the front calipers, pistons in the rear usually have to be rotated to compress them.
Step on the brake pedal.
On a ( 2004 ) Ford Freestar : The passenger compartment fuse panel is below and to the left of the steering wheel , by the brake pedal ( it has a cover on it )
If you look at the cover on the brake fluid reservoir, it should read DOT 3
---- You have to turn it (caliper piston) as you are depressing the piston back into the caliper. You can't just "jam" it in. I used a caliper tool (for depressing the caliper) and turned the piston with large jaw pliers. This gives both inward pressure and the turning motion. I turned it clockwise and that seemed to work. There is a special tool you can buy to turn the piston as you push it back into the body of the caliper but if you work carefully and you are VERY aware of the rubber boot (don't rip it) then pliers are ok (don't tell the Ford dealer). Cover the pliers with something so you don't scratch/ruin the piston. The front brakes are just a standard push - don't need to turn them. Why do the back brakes work this way? Has to do with the parking brake. If you look you can see that it is attached to the caliper on the rear.
rear brakes on the 1996 ford thunder bird caliper is a screw caliper . yes or no...
A 10mm wrench is used on most Freestars, but a few have 12mm.
The torque settings for the caliper pins on a Ford Escort is 21 ft-lbs. For the caliper anchor bolts, the setting is 98 ft-lbs.
T-40 bit!
With an Easy-Out.