For 1990-2009 cars

# SELECTIVE WASHER/NEW DESIGN 200C,2004R,325-4L TRANS.

BEGINNING IN LATE MARCH, 1983 A NEW DESIGN SELECTIVE WASHER WENT INTO PRODUCTION THAT IS USED ON THE FOLLOWING PARTS: (NOTE BULLETIN REVISED, NEW PARTS WENT IN PRODUCTION JUNE 17,1983.) --TURBINE SHAFT TO OUTPUT SHAFT - THM 200-C --FORWARD CLUTCH SHAFT TO OUTPUT SHAFT - THM 200-4R --INPUT SHAFT TO OUTPUT SHAFT-THM 325-4L THESE PARTS ARE MADE FROM A DIFFERENT MATERIAL AND CAN BE IDENTIFIED AS SHOWN IN FIGURE 1. WHEN SERVICING ANY THM 200-C, 200-4R, OR 325-4L TRANSMISSION THAT NECESSITATES THE REPLACEMENT OF THE SELECTIVE WASHER DUE TO WEAR OR DAMAGE, FOLLOW THE SERVICE PROCEDURE BELOW: SERVICE PROCEDURE: 1. INSPECT THE TWO SHAFTS FOR WEAR OR DAMAGE ON THE SELECTIVE WASHER MATING SURFACES. IF WEAR OR DAMAGE IS FOUND REPLACE THE SHAFTS TO PREVENT FUTURE WEAR. 2. SELECT THE PROPER SELECTIVE WASHER FROM THE CHART BELOW. 3. CHECK THE FRONT END PLAY TO VERIFY THE PROPER WASHER SELECTION, FOLLOWING PROCEDURES OUTLINED IN YOUR SERVICE MANUAL. FRONT END PLAY SHOULD BE 0.56MM - 1.30MM (0.022-0.051 IN.). SECOND BULLETIN: INFORMATION REVISED TO CORRECT THE IMPLEMENTATION DATE OF THE NEW DESIGN SELECTIVE WASHER FROM MARCH, 1983 TO JUNE 17, 1983.

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.