Assembly

1. Lubricate piston bore and new piston seal with clean brake fluid.
2. Install seal in bore groove by hand and lubricate piston with clean brake fluid.
3. Install new dust boot on piston, sliding metal retainer portion of boot over open end of piston and pulling boot rearward until boot lip seats in piston groove.
4. Push metal retainer portion of boot forward until retainer is flush with rim at open end of piston, then snap boot fold into place.
5. Install piston into caliper bore, using care to avoid unseating piston seal.
6. Press piston to bottom of bore.
7. Use seal installer tool No. J-33028, or equivalent, to seat metal retainer portion of dust boot in counterbore at upper end of bore.
8. Install bleeder screw, then new inner and outer bushings and plastic sleeves, if equipped, in caliper mounting ears.