Download 2003 Infiniti G35 Front & Rear Disc Pads Service Manual – 1. Remove master cylinder reservoir cap. DO NOT let brake fluid reservoir overflow when pushing piston back. Remove lower sliding pin bolt (front caliper) or top sliding pin bolt (rear caliper). Pivot caliper off on remaining sliding bolt and hang caliper with wire. Remove pad retainers, shims and pads. See Fig. 1 and Fig. 2 . Push piston in using a disc brake piston tool. NOTE: The front inner pad and outer pad have pad-return mechanism on upper side of pad retainer. When installing pad, be sure to install pad return lever to pad wear sensor securely. See Fig. 9 . 2. To install, apply brake grease to back of pad and both sides of shim. Install inner shim to inner pad, and outer shim and outer shim cover to outer pad. Apply disc brake grease to pad contact surface on pad retainer, and install pad retainers and pads to torque member.