BRAKE SYS. PROPORTIONER VALVE IDENTIFICATION

DURING MID-JUNE, 1982, NEW BRAKE SYSTEM PROPORTIONER VALVES HAVE BEEN USED IN PRODUCTION ON 1982 "J" CARS. EARLY PRODUCTION AND LATE PRODUCTION PROPORTIONER VALVES ARE NOT TO BE USED ON THE SAME VEHICLE. IF A VALVE REQUIRES REPLACEMENT IN SERVICE, DETERMINE WHAT VALVE IS ON VEHICLE AND REPLACE WITH THE SAME TYPE VALVE. REFER TO ILLUSTRATION . EARLY PRODUCTION: COLOUR: BODY AND CAP SAME COLOUR - GOLD OR GREEN IDENTIFICATION CODE: * FRONT = "FC" **REAR = "RC" SERVICE PART NUMBERS: FRONT = 18006626 REAR = 18006627 LATE PRODUCTION: COLOUR: BODY - GOLD OR GREEN CAP - BLUE IDENTIFICATION CODE: * FRONT = FT **REAR = RT SERVICE PART NUMBERS: FRONT = 18009945 REAR = 18009946 * FRONT = VALVE NEAREST FRONT OF VEHICLE ** REAR = VALVE NEAREST DASH OF VEHICLE

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.