POWER SEAT ADJUSTER EXCESSIVE MOVEMENT

MODEL AND YEAR: 1984 TO 1987 CORVETTES

Due to a component change within the power seat transmissions for 1984 to 1987 Corvettes, two (2) transmission assemblies and carriages are now available for service.

In order to determine which transmission and/or carriage will be needed for servicing, it will be necessary to identify the assemblies by date code numbers.

The date code locations are: the left front floor mounting support and the inboard front upper corner of the seat transmission assembly. (See Illustration).

The difference in the seat transmissions involve the pinion gear shaft sizes which engage the bushings on the right side of the carriage.

Prior to date code 233-86 6.3mm (1/4") diameter After date code 233-86 7.9mm (5/16") diameter

If service is required on the seat adjuster components, refer to the following chart for proper parts usage:

Build Date Code Trans Assembly P/N Carriage P/N --------------- ------------------- ------------ Prior to 233-86 10065222 14067602 After 233-86 10081946 10081947

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.