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All Technical Service Bulletins for Brake Shoe: > < Brake Drum|Specifications|Page 5629
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Brake Shoe: Customer Interest
Brakes - Noise During Warm Weather, Heavy Brake Usage

Number:

86-139

Section:

5

Date:

AUG., 1986

Subject:

BRAKE NOISE

Model and Year: 1982 THROUGH 1986 CELEBRITY

(EXCEPT POLICE OPTION)
TO:

ALL CHEVROLET DEALERS

Some vehicles may experience a high pitched squeal coming from the front of the vehicle under light to moderate brake applications.
The squeal may be more noticeable during warm weather or periods of heavy brake usage.

A new brake lining material composition is now available that will reduce brake squeal on concerned vehicles. Rotors should be
inspected and the brake surfaces refinished if necessary. Before refinishing rotors, be sure all rust is removed from the rotor mounting
surface.

Light Duty - New P/N 12321423

1982-86

Heavy Duty - New P/N 12321422

1983-86

All Technical Service Bulletins for Brake Shoe: > < Brake Drum|Specifications|Page 5629