NEW SPACER- PLATE INDENTIFICATION TAB-2004R

MODELS AFFECTED: ALL WITH 200-4R

BULLETIN COVERS (Figure 1)

Information on a new identification tab added to all THM 200-4R valve body spacer plates. The new ID tab will allow the identification letters to be read while the valve body is installed in the transmission.

Previous spacer plates could not be identified while assembled in the transmission because the identification letters were obscured by the valve body. A tab has been added at a different location (shown in Figure 1) and the identification letters are now visible after assembly.

DATE OF PRODUCTION CHANGE (Figure 2)

All THM 200-4R models built after July 7, 1989 (Julian date 188), were built using the revised spacer plate.

SERVICE PARTS INFORMATION

PART NUMBERS AND IDENTIFICATION LETTERS HAVE NOT CHANGED. Therefore, when servicing a THM 200-4R spacer plate, order the usual part number and the replacement part will be the updated spacer plate.

All past model spacer plates for service will include the new identification tab when current stock is used up.

SERVICE MANUAL REFERENCE

Refer to the Unit Repair section of the THM 200-4R service manual for spacer plate removal and installation.

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.