ERRATIC/SOFT SHIFTS-THM 200-4R 'BR'/ REPLACE SERVO ASSEMBLY

SOME 1983 THM 200-4R MODEL "BR" TRANSMISSION MAY EXPERIENCE ERRATIC SHIFTS OR FELT AS A SOFT 1-2 AND 2-3 SHIFTS. TO REDUCE THESE ERRATIC SHIFTS, A NEW INTERMEDIATE SERVO ASSEMBLY WENT INTO PRODUCTION IN LATE OCTOBER 1982. WHEN SERVICING ANY 1983 THM 200-4R MODEL "BR" TRANSMISSION WITH ANY ERRATIC SHIFT CONDITION, THAT HAS A "3-BR-1"OR A "3-BR-2" INK STAMP ON THE TOP, FRONT BELL HOUSING OF THE TRANSMISSION, REPLACE THE INTERME- DIATE SERVO ASSEMBLY WITH SERVICE PART NUMBERS: 1-INTERMEDIATE SERVO PISTON/OIL SEAL RING PACKAGE - 8632980 1-INTERMEDIATE SERVO CUSHION SPRING - 8639264 1-INTERMEDIATE SERVO PISTON/OIL SEAL OIL RING PACKAGE - 8632928 1-INTERMEDIATE SERVO COVER/"O" RING SEAL - 8628136

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.