SERVICE PARTS UPDATE - RETURN TO PREVIOUS DESIGN FILTER

Model and Year: ALL MODELS WITH THM 200-4R TRANSMISSION

This bulletin cancels and supersedes Chevrolet Dealer Service Bulletin 88-62-7A dated October 1987. All copies of bulletin 88-62-7A should be destroyed.

Effective November 25, 1987, (Julian Date 329) Hydra-Matic began using the original design filter and seal assembly for all 200-4R transmissions.

When replacing the filter on any past or current model THM 200-4R transmission, use the following service package: GMSPO part number 8639951 (includes previous filter, previous o-ring seals, and oil pan gasket) .

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.