Brake Booster Piston Rod

Push piston rod several times to ensure reaction disc is in place. Set Booster Piston Rod Gauge (09950-96010) on brake booster, until it contacts piston. Turn gauge upside down and place it on booster. No clearance should exist. If Booster Piston Rod Gauge (09950-96010) is unavailable, remove brake booster piston rod seal and retainer. Measure distance between tip of push rod and mating surface of booster-to-master cylinder. Measurement should be 1.257-1.263" (31.9-32.1 mm). If measurement is not as specified, use Booster Piston Rod Adjuster (09952-16020) to adjust push rod.