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1/4" or 10MM Hex- caution- some use the torx bolts. The rear you may need a tool to twist the piston back into the caliper. On some, a screw on the back of the caliper is turned to draw the piston back in. If your car has anti-lock brakes, then open the bleeder screws on the calipers before pushing the pistons in. That way, you won't be pushing dirt back up into the ABS hydraulic unit.

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โˆ™ 2004-12-21 06:46:29
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Q: What size Allen wrench is required to change front brake pads on a 1994 Chevy Cavalier and are any special tools required to change rear drum pads?
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