Disc Brake Caliper - Front (SRT-4): Disassembly

1. Mount the caliper in a vise equipped with protective jaws.
2. Place a wooden block in the caliper. See Fig 1.
WARNING: DO NOT place face or hands near caliper and piston if using compressed air pressure to remove piston. DO NOT use high pressure.
3. If necessary, apply low pressure compressed air to the caliper fluid inlet in short spurts to force the piston out.
4. Remove the piston from the caliper.
5. Remove the dust boot from the piston and discard it.
CAUTION: DO NOT use a screwdriver or other metal tool for seal removal. Using such tools can scratch the bore or leave burrs on the seal groove edges.
6. Using a soft tool such as a plastic trim stick, work the piston seal out of its groove in caliper piston bore. Discard the old seal.
7. Clean the piston bore and drilled passage ways with alcohol or a suitable solvent. Wipe it dry using only a lint-free cloth.
8. Inspect both the piston and bore for scoring or pitting. Bores that show light scratches or corrosion can usually be cleared using crocus cloth.

Fig 1: Removing Caliper Piston

Courtesy of CHRYSLER CORP.