FRONT BRAKE NOISE REVISED BRAKE PAD W/JN3

FRONT BRAKE NOISE (REVISED BRAKE PAD)

VEHICLES AFFECTED: 1988 C/K 10 ------------------

Some 1988 C/K 10 series trucks with JN3 power brakes (fourth digit of VIN is "D") may experience a high pitched brake noise under light to moderate brake applications. A revised brake pad with a new lining has been released to production after the following VIN breakpoints to reduce the noise.

Ft. Wayne - GMC - JZ543800 CHEV - JZ256482

Oshawa - GMC - J1564368 CHEV - J12565820334

Pontiac - GMC - JE528759 CHEV - JE182877

Option Part Model Code Year Number ----- ------ ---- ------ C/K 10 JN3 1988 12321447 Under 6000 GVWR Power Brakes

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.