Rear Disc Brake Rotor Specifications - Revision

File in Section: 5 - Brakes

Bulletin No.: 53-50-07

Date: May 1995

SERVICE MANUAL UPDATE

Subject:
Section 5 - Brakes - Revised Rear Disc Brake Motor Specifications

Models:
1994-95 Buick Regal
1995 Chevrolet Lumina
1994-95 Oldsmobile Cutlass Supreme
1994-95 Pontiac Grand Prix

This bulletin updates the rear disc brake rotor specifications.

Dimensions

The following dimensions are updated for the rear disc brake rotors.

Rotor Diameter (new) 278.0 mm (10.945")
Maximum Lateral Run-out 0.08 mm (0.003")
Maximum Transverse Run-out 0.013 mm (0.0005")
Maximum Scoring 1.52 mm (0.060")
Rotor Thickness (new) 11.00 mm (0.433")
Minimum Rotor Thickness (new) 9.78 mm (0.385")
Discard Thickness (new) 9.40 mm (0.370")
Minimum Wear Stock 0.38 mm (0.015")