Changing the rear brakes on a 2003 Ford Focus.

Jack up rear wheels spin each one to check noise , if one is noisy check the brake shoes for a broken spring or other damage.

How To Install Replace Rear Drum Brakes Ford Focus 00 11 1AAuto com

2000 Ford Focus Drum Removal ProcedureIf removing the drum to service the rear brakes: (note, do not remove hub retaining nut for this procedure)
1. Raise and support vehicle
2. Release the parking brake
3. Remove wheel and tire
4. Disconnect wheel speed sensor wiring harness from wheel knuckle and floor panel.
5. Remove 4 wheel spindle attaching bolts, then the wheel hub and drum assembly from vehicle.
6. Reverse procedure to install noting the following:
a. Torque wheel spindle retaining nut to 49 ft. lbs.
b. Torque wheel/tire assembly to 94 ft. lbs.
2000 Ford Focus Drum Replacement ProcedureIf replacing the drum and wheel bearing assembly:
1. Raise and support vehicle
2. Release the parking brake
3. Remove wheel and tire
4. Remove center dust cap.
5. Remove hub retaining nut.
6. Remove drum and hub assembly. Ensure wheel speed sensor ring is not damaged when removing drum/hub (if equipped).
7. Reverse procedure to install noting the following:
a. Inspect and clean wheel speed sensor ring if equipped.
b. When tightening hub retaining nut, rotate the hub assembly in counterclockwise direction.
c. Torque hub retaining nut to 173 ft. lbs.
d. Torque wheel/tire assembly to 94 ft. lbs.
e. Adjust parking brakes as necessary.

This is a drum style brake. If this is the case what you are going to need is a pair of spring pliers, or drum brake tools. it makes the retaining springs and the hold down springs a lot easier to manage. and also helps with removing and replacing the longer springs. Your local parts store should have one and they go for any where from $12-$30 USD.

Brake Drums & Brake Shoes Removal & Installation To Remove:
Rear Drum Brakes

1. Raise and safely support rear of vehicle.
2. Release parking brake.
3. Remove rear wheel assemblies. NOTE: If brake drum is stuck, install two 8 mm bolts into threaded holes and tighten evenly.
   
4. Remove top return spring, front and rear shoe spring clips and hold-down pins.
5. Remove anti-rattle spring and adjuster spring. NOTE: Note position of operating lever prior to removal.
   
6. Remove bottom return spring.
7. Remove clip and washer and detach parking brake cable from rear shoe.
8. Remove brake shoes.

To Install:

1. Lubricate all brake shoe contact points with appropriate grease.
2. Place operating level into position on hub.
3. Install rear brake shoe and connect parking brake cable to rear shoe with washer and clip.
4. Install front brake shoe and install bottom return spring.
5. Install hold-down pins and spring clips.
6. Position operating lever and install top return spring.
7. Install anti-rattle spring and adjuster spring.
8. Install brake drum and screws.
9. Adjust brakes and install rear wheel assemblies.

Try this:

How to replace the rear brake pads on a 1995 through 2001 Ford Explorer The system utilizes a drum-in-hat type rear brake rotor. The integral drum allows the use of a drum-and-shoe type parking brake system. All other components are similar to their front disc brake components Remove the two bolts on either side of the brake hose with the rubber boots. Do not remove the four bolts where the axle ties in. The two bolts to be removed require a 10mm socket/wrench. Loosen the pads from the caliper Rotor Removal In order to take the rotors off (replace with new or have them machined), it is best to loosen the emergency brake shoes. To do this, behind the rotors, in the back there is a rubber plug, remove that and you can use a screw driver to engage the teeth of the adjusting screw, turn it clockwise to loosen, usually 10-20 teeth. Usually this means turn it downward. After this, it may still be difficult to get the rotors off without tapping them. Use a rubber mallet and hit them from behind. Before really whacking the rotor, make sure you have loosened the adjusting screw enough. It may take heavy swings of the rubber hammer to do this. It will eventually break loose. Parking Brake You might want to check the parking brake while you are here. To remove:

• Remove the rear disc brake rotor.

• Remove the outboard return spring.

• Remove the adjusting screw spring.

• Remove the rear brake shoe hold-down spring and pin.

• Remove the brake shoe adjusting screw and nut.

• Remove the front brake shoe hold-down spring and pin.

• Remove both parking brake shoes and the inboard return spring.

• Check the parking brake lever for excessive wear and replace as necessary.

To install:

• Position the front parking brake shoe to the backing plate and install the hold-down pin and spring.

• Install the rear parking brake shoe with the inboard return spring.

• Position the brake shoe adjuster screw and nut on the shoes and install the rear shoe hold-down pin and spring.

• Install the brake shoe adjuster spring.

• Install the outboard return spring.

• Adjust the parking brake shoes and install the rotor, caliper and wheel.

• Lower the vehicle and tighten the wheel lug nuts to 100 ft. lbs. (135 Nm).

ADJUSTMENT

• Measure the inside of the drum portion of the rear brake rotor

• Remove the rear disc brake rotor.

• Using Brake Adjustment Gauge D81L-1103-A or equivalent, measure the inside diameter of the drum portion of the rear disc brake rotor.

• Subtract 0.020 in. (0.508mm) from the first measurement, adjust the brake shoes to that size

• Adjust the parking brake adjuster screw until the outside diameter of the parking brake shoes measures 0.020 in. (0.508mm) less than the drum measurement.

• Install the rear disc brake rotor.

Reassembly Reassembly is easy. Put new or machined rotors back on by sliding them over the lugs (they should slide on easily.) Loosen bleeder valve (having a catch bottle handy is good). Push calipers in slowly (using a c-clamp or large channel lock pliers), close bleeder valve. Put on pads. Lubricate metal clips with small amount of anti-seize. Re-adjust the emergency brake by turning the opposite direction from loosening. Refill the brake master cylinder

Brake shoe removel:

Depress and turn the retainers for the hold-down springs and pins to remove them from each shoe. Slide the brake shoe assembly--including the shoes and springs--down so you can disengage the top ends of the shoes from the cylinder and tilt them to lift them past the retaining plate.

Unhook the lower retracting spring from the front brake shoe to disconnect it. Spread the shoes apart at the bottom to remove the adjusting screw, the screw's retracting spring and the adjuster lever. Remove the front brake shoe.

Pull the parking brake cable spring back with diagonal cutting pliers, grip the cable with the pliers without cutting it, unhook the cable from the parking brake lever and remove the rear brake shoe with the lever.

Disconnect the parking brake lever from the rear shoe by spreading the retaining clip with a screwdriver and removing the clip and its spring washer.

Step 4 Pull the parking brake cable spring back with diagonal cutting pliers, grip the cable with the pliers without cutting it, unhook the cable from the parking brake lever and remove the rear brake shoe with the lever.

Step 5 Disconnect the parking brake lever from the rear shoe by spreading the retaining clip with a screwdriver and removing the clip and its spring washer.

Read more: How to Change Rear Brakes on a 1997 Ford Taurus | eHow.com http://www.ehow.com/how_6123373_change-brakes-1997-ford-taurus.html#ixzz0u2xgUqun

Step 3 Unhook the lower retracting spring from the front brake shoe to disconnect it. Spread the shoes apart at the bottom to remove the adjusting screw, the screw's retracting spring and the adjuster lever. Remove the front brake shoe.

Step 4 Pull the parking brake cable spring back with diagonal cutting pliers, grip the cable with the pliers without cutting it, unhook the cable from the parking brake lever and remove the rear brake shoe with the lever.

Read more: How to Change Rear Brakes on a 1997 Ford Taurus | eHow.com http://www.ehow.com/how_6123373_change-brakes-1997-ford-taurus.html#ixzz0u2xdByQ8

Step 2 Slide the brake shoe assembly--including the shoes and springs--down so you can disengage the top ends of the shoes from the cylinder and tilt them to lift them past the retaining plate.

Step 3 Unhook the lower retracting spring from the front brake shoe to disconnect it. Spread the shoes apart at the bottom to remove the adjusting screw, the screw's retracting spring and the adjuster lever. Remove the front brake shoe.

Step 4 Pull the parking brake cable spring back with diagonal cutting pliers, grip the cable with the pliers without cutting it, unhook the cable from the parking brake lever and remove the rear brake shoe with the lever.

Step 5 Disconnect the parking brake lever from the rear shoe by spreading the retaining clip with a screwdriver and removing the clip and its spring washer.

Read more: How to Change Rear Brakes on a 1997 Ford Taurus | eHow.com http://www.ehow.com/how_6123373_change-brakes-1997-ford-taurus.html#ixzz0u2xVyUAt

Step 2 Slide the brake shoe assembly--including the shoes and springs--down so you can disengage the top ends of the shoes from the cylinder and tilt them to lift them past the retaining plate.

Step 3 Unhook the lower retracting spring from the front brake shoe to disconnect it. Spread the shoes apart at the bottom to remove the adjusting screw, the screw's retracting spring and the adjuster lever. Remove the front brake shoe.

Step 4 Pull the parking brake cable spring back with diagonal cutting pliers, grip the cable with the pliers without cutting it, unhook the cable from the parking brake lever and remove the rear brake shoe with the lever.

Step 5 Disconnect the parking brake lever from the rear shoe by spreading the retaining clip with a screwdriver and removing the clip and its spring washer.

Read more: How to Change Rear Brakes on a 1997 Ford Taurus | eHow.com http://www.ehow.com/how_6123373_change-brakes-1997-ford-taurus.html#ixzz0u2xVyUAt

due to some reasons the rim is out of shape. so change the rim and then try using the brakes

the bearing needs to come apart remove the silver cap you should see a cotter pin holding the spindle nut remove the pin then the lock shield for jam nut then remove jam nut be careful as bearing may fall out there is a washer between jam nut and bearing then you should be able to remove drum