1995 Lincoln towncar rear brake caliper bolt bit size

Possibly still air in the lines.or air in the master cylinder .

remove wheel, brake caliper, dust cap, cotter pin, nut and washer, remove outer bearing. re-install nut a few turns and pull off rotor catching the inner bearing with the nut and pulling inner bearing out of rotor. remove inner and outer bearing races, install new races and grease surfaces of races and pack new wheel bearings with bearing grease and re-install in reverse order. wheel bearing nut tighten then back off and snug until you can put a new cotter pin through the holes of the nut and spindle hole and bend over the pin to lock nut from coming lose. caliper bolts/pins tighten.

Two bolts hold the capliper solid in the caliper bracket that is fitted on the wheel hub. Just find the right size wrench for those two bolts (possibly 10 mm), remove them, and the caliper is free except for the brake hose leading to it. If removing completely from the car, remove the brake line at the union fitting, then unscrew it from the caliper.

Remove the e-brake cable from the caliper. Remove the brake hose bolt. remove the two bolts holding the caliper to the bracket. Remove the caliper.

Install the new caliper and bleed the brakes.

you should be good to go.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Some GM Vehicles use aT-30 Torx bit, other use a regular hex head bolt with a ratchet tor remove the caliper. The following shows how to remove the caliper from the line. Brake Caliper Removal & Installation Front To Remove:

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, remove brake fluid to the midway point before proceeding.
3. Raise and support the vehicle.
4. Remove the tire and wheel assembly.
5. Hand tighten 2 wheel lug nuts to retain the rotor to the hub.
6. Install a large C-clamp over the brake caliper with the ends of the clamp against the rear of the caliper body and the outer brake pad.
7. Tighten the C-clamp until the caliper piston is compressed into the bore enough to allow the piston to slide past the rotor and remove the C-clamp.
8. Disconnect the brake line from the caliper and discard the two copper gaskets.
9. Plug the brake line and the opening in the brake caliper. NOTE: On second design hardware, the upper caliper pin bolt has a bushing as part of the bolt. The lower caliper pin bolt is of a solid design.
   
10. Remove the caliper pin bolts and the caliper from the bracket.

To Install:

1. Replace any damaged caliper pin boots.
2. If reusing the brake caliper pin bolts, wipe the old grease from the brake caliper pin bolts.
3. On first design hardware apply high temperature silicone brake lubricant to the brake caliper pin bolts. On second design hardware, apply a thin coat of NIGLUBE® or equivalent grease to the brake caliper pin bolts. In either case it is not necessary to apply lubricant to the threads of the pin bolts.
4. Install the brake caliper over the brake pads into the brake caliper bracket. NOTE: On second design hardware, the upper caliper pin bolt has a bushing as part of the bolt. The lower caliper pin bolt is of a solid design.
   
5. Install the caliper pin bolts and torque to 38 ft-lbs (51 Nm) (1996 - 1999), 63 ft-lbs (85 Nm) (2000 – 2005).
6. Install the brake hose bolt with new copper brake hose gaskets to the brake hose and to the brake caliper, torque to 33 ft-lbs (45 Nm) (1996 – 2001) 32 ft-lbs (43 Nm) (2002 – 2005).
7. Bleed the brake system.
8. With the engine OFF, gradually apply the brake pedal to approximately 2/3 of its travel distance and slowly release the pedal. Wait 15 seconds and do it again until a firm brake pedal is obtained.
9. Remove the 2 wheel lug nuts to retain the rotor to the hub.
10. Install the tire and wheel assembly.
11. Lower the vehicle.

Rear

Rear disc brake pads offer better performance and are not as affected by moisture like conventional brake shoe style brakes are. Rear disc brakes are similar to front disc brakes. The main difference is that rear disc brake systems must incorporate the emergency brake system. There are two methods widely used for the emergency brake with rear disc systems. The first system is a brake shoe inside the brake disc that is actuated by the emergency brake lever. The second is a screw style actuator inside the brake caliper. When activated the brake pads are forced into the brake disc and held tightly by the emergency brake lever.
READ COMPLETELY BEFORE STARTING
Step 1 - Identify Rear Disc Brake Components
Rear disc brake assembly includes; rear brake disc, rear brake pads, brake caliper mount and a caliper mounting screw. (Note: Some vehicles do not have the rotor mounting screw.)
Step 2 - Removing the Rear Brake Caliper Mount Bolts
To replace rear brake pads and rotors the rear brake caliper needs to be removed. First loosen the rear brake caliper mount bolts and remove them. Turn counter clockwise.
Step 3 - Lift Rear Brake Caliper from The Caliper Mount
After the caliper mount bolts have been removed, gently lift the brake caliper from the caliper mount. Inspect the caliper slides; they should move freely in the caliper mount. Remove rear brake pads and hardware.

Step 4 - Removing Caliper Mount Bolts
With a socket wrench or other appropriate removal tool, loosen the rear brake caliper mounting bolts. Remove bolts and lift the caliper mount and remove it from the vehicle. Remove the retaining screw from the disc mounting hole. Tap the rotor gently to release any rust that has accumulated between the rotor and bearing hub. Lift brake rotor from wheel hub holding on tightly, using both hands. You do not want to drop the rotor.

Step 5 - Removing Rear Brake Rotor
Remove the retaining screw from the disc mounting hole, tap the rotor gently to release any rust that has accumulated between the rotor and bearing hub. Lift brake rotor from wheel hub, hold on using both hands and do not drop.

Step 6 - Install New Brake Rotor
Check the new rotor against the old brake rotor to make sure they are the same size. Clean the mating surface on the wheel hub before the new brake rotor is installed. Reinstall rotor retainer screw.
Step 7 - Reset Rear Brake Caliper
Before new brake pads can be installed, the rear brake caliper must be reset. The reset tool winds the piston back into position so the new brake pads will fit. This style of brake caliper will not compress with a clamp tool; it can only be reset with the proper reset tool.
Step 8 - Reinstall Rear Caliper Mount and Install New Rear Brake Pads
After the caliper has been reset, reinstall caliper mounting bolts and make sure the bolts are tight. Then match up the old brake pads to the new brake pads. They should be exactly the same except, of course; the old ones will be worn out. Check the new brake pads for proper fit and install any brake hardware that is required.
Step 9 - Remount Rear Brake Caliper
Reinstall the brake caliper, align brake pad hardware and reinstall caliper mounting bolts. (Note: align the rear peg of the brake pad to the groove in the caliper piston.) Recheck and retighten all caliper and caliper mount bolts. Bleed brake system to relieve any air in the system. Before driving the vehicle, push the brake pedal down and let it up slowly. This operation forces the brake pads to travel to the brake rotors. DO NOT DRIVE VEHICLE until proper brake pedal operation resumes. When test driving vehicle listen for any unusual noises during the operation of the brakes.
WARNING! Always have the vehicle under inspection on level ground, in park with the emergency brake on. Always wear protective eyewear, gloves and necessary clothing before inspection or work begins. Never crank an engine over when anyone is near the battery or engine. Always have an operational fire extinguisher close by, obey all first aid instructions in the event of an injury. Never stand in front or behind a vehicle when cranked over or running. When engine is cranked over keep hands and clothing away from rotating components. Never move a car without proper brake pedal operation.

front or rear brake rotor? b sure to shut off the air ride system! the switch is located in the rear kick panel! lift and support front remove tires !the caliper has two mounting bolts remove those and hang caliper to the side using a metal coat hanger! now look at the bracket that was connected to the caliper remove those two bolts !the rotor should come off

CHANGING FRONT BRAKE PADS
Jack up the car. Take off your tire. Find the bolt on the back of the caliper and take it off. This should release the caliper, pull the caliper off the disc. Now you should be able to take the pad out. Replace the pad. You'll need a special tool to reset the caliper. As the brakes wear down, the caliper gets tighter so the brakes still work. I'm not sure exactly what its called, but you can borrow one from auto zone. Follow the instructions that come with it to reset the caliper. Slide the caliper back over the disc. If it doesn't go on, you need to reset the caliper more. Put the relese bolt back in. Put your tire back on.Drive slowly and test the brakes.
CHANGING THE REAR BRAKE PADS
The rear brakes on the rx8 are a bit different than most setups...be careful! The only way to move the piston back into the caliper is by way of a special allen head bolt that is directly behind the piston, on the back side of the caliper, installed under a 14mm bolt.
You have to remove this bolt to gain access to the allen head. As you loosen the allen head bolt(counter-clockwise), the piston will move back into the caliper.
Installation is pretty typical, again, the allen head bolt being the unusual part. The manual says to tighten this bolt until the pads contact the rotor, then loosen the bolt 1/3rd of a turn, then reinstall the 14mm bolt.

1. Disconnect the brake hose.
2. Remove bolt.
3. Disconnect the rear wheel brake hose (2A442).
4. Remove the copper washers and plug the brake hose.
Disconnect the brake hose.
1. Remove bolt.
1. Disconnect the rear wheel brake hose (2A442).
1. Remove the copper washers and plug the brake hose.
1. CAUTION: Do not remove the guide pins or guide pin boots unless a problem is suspected. The guide pins are meant to be sealed for life and are not repairable. Use Silicone Brake Caliper Grease and Dielectric Compound D7AZ-19A331-A (Motorcraft WA-10) or an equivalent silicone compound meeting Ford specification ESE-M1C171-A for re-lubing the caliper slide pins. Other greases can swell the guide pin boots, resulting in contamination and accelerated corrosion or wear of the caliper slide pin mechanism.
   Remove the rear disc brake caliper (2552).
   1. Remove the brake caliper bolts (2W303).
   1. Lift the rear disc brake caliper off the rear disc brake caliper anchor plate (2C220).
1. Inspect the rear disc brake caliper for leaks.
   • If leaks are found, disassembly is required. Refer to Caliper in this section.
Installation

1. CAUTION: To prevent interference with rear disc brake caliper operation, install only the correct caliper bolt.
   NOTE: Make sure the stainless steel shoe slippers are correctly positioned. Install new slippers if worn or damaged.
   NOTE: When installed, the locator notch on the brake pads will be located at the upper end of the rear disc brake caliper.
   Install the rear disc brake caliper.
1. Install the rear wheel brake hose.
   • Connect the brake hose and install the caliper flow bolt.
     • Use new copper washers.
1. Bleed the disc brake caliper. For additional information, refer to Section 206-00 .
1. NOTE: If equipped with air suspension, reactivate the system by turning on the air suspension switch.
   Install the wheel and tire assembly. For additional information, refer to Section 204-04 .
1. Verify correct brake operation.
5. CAUTION: Do not remove the guide pins or guide pin boots unless a problem is suspected. The guide pins are meant to be sealed for life and are not repairable. Use Silicone Brake Caliper Grease and Dielectric Compound D7AZ-19A331-A (Motorcraft WA-10) or an equivalent silicone compound meeting Ford specification ESE-M1C171-A for re-lubing the caliper slide pins. Other greases can swell the guide pin boots, resulting in contamination and accelerated corrosion or wear of the caliper slide pin mechanism.
   Remove the rear disc brake caliper (2552).
   1. Remove the brake caliper bolts (2W303).
   1. Lift the rear disc brake caliper off the rear disc brake caliper anchor plate (2C220).

1. Inspect the rear disc brake caliper for leaks.
• If leaks are found, disassembly is required. Refer to Caliper in this section.

Disc Removal

1. NOTE: When removing the rear brake disc (2C026) in this procedure it is not necessary to disconnect the hydraulic lines.
   Remove the rear disc brake caliper (2552). For additional information, refer to Caliper in this section.

1. NOTE: If the rear brake disc binds on the rear parking brake shoe and linings, remove the adjustment hole access plug and contract the parking brake shoe and lining.
   Remove the rear brake disc.

1. CAUTION: Use a hub-mount brake lathe if necessary to machine the rear brake disc.
   Measure the rear brake disc, and resurface as necessary. Install a new rear brake disc if beyond specification.

--------------------------------
Installation

1. CAUTION: To prevent interference with rear disc brake caliper operation, install only the correct caliper bolt.
   NOTE: Make sure the stainless steel shoe slippers are correctly positioned. Install new slippers if worn or damaged.
   NOTE: When installed, the locator notch on the brake pads will be located at the upper end of the rear disc brake caliper.
   Install the rear disc brake caliper.

1. Install the rear wheel brake hose.
   • Connect the brake hose and install the caliper flow bolt.
     • Use new copper washers.

1. Bleed the disc brake caliper. For additional information, refer to Section 206-00 .

1. NOTE: If equipped with air suspension, reactivate the system by turning on the air suspension switch.
   Install the wheel and tire assembly. For additional information, refer to Section 204-04 .

1. Verify correct brake operation.

I just did the rear caliper on my '95 Deville Concours and found that the caliper would not rotate enough to slide it off the top bolt. My solution was to remove the parking brake cable bracket bolt behind the caliper. This gave me the ability to rotate the caliper enough to get the caliper off of the brake pads and slide the caliper towards the inside of the car.