Rear brakes?

Need special tool that locks into cut outs on piston. Then rotate clockwise and push in till it retracts

You have to use a rear brake caliper spanner tool that rotates the piston while compressing it at the same time. Be sure to line up the caliper piston or the pads will not fit correctly. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Welcome to 2CarPros.

Here are the directions for pad replacement which include compression of the caliper piston. The attached pictures correlate with these directions.

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Brake Pads Replacement - Rear

Removal Procedure

Caution: Refer to Brake Dust Caution in Service Precautions.

1. Inspect the fluid level in the brake master cylinder reservoir.
2. If the brake fluid level is midway between the maximum-full point and the minimum allowable level, then no brake fluid needs to be removed from the reservoir before proceeding. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, then remove brake fluid to the midway point before proceeding.
3. Raise and suitably support the vehicle. Refer to Vehicle Lifting.
4. Remove the tire and the wheel assembly.
5. Hand tighten two wheel lug nuts in order to retain the rotor to the hub.

Picture 1

6. Compress the rear caliper piston.
1. Install a large C-clamp (3) over the top of the caliper housing (2) and against the back of the outboard pad.
2. Slowly tighten the C-clamp (3) until the piston pushes into the caliper bore enough to slide the caliper (2) off the rotor.
3. Remove the C-clamp from the caliper.

Picture 2

7. Remove the upper caliper bolt (2).

Now, it only indicates to depress the piston enough to remove the caliper. Once the caliper is off, place an old brake pad on the piston and using the C clamp, depress the caliper piston fully in. I always suggest removing the master cylinder cap, but keep in mind, if the MC is already full, depressing the caliper will cause fluid to leak from the top of the MC.

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Let me know if this is what you needed.

Take care,
Joe