Some 1982 thru 1984 125/125-C transmissions may exhibit a rough neutral to drive gear engagement.
Beginning December 15, 1983, a new forward clutch wave plate, part number 8652126 went into production. Refer to the chart below for model and serial number application.
When servicing any 1982 thru 1984 model THM 125/125-C transmission for this rough neutral to drive condition, order part number 8652126. Refer to the service manual tor removal and replacement of the forward clutch wave plate.
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.