1983 Citations and Celebritys produced at the Oklahoma City Assembly Plant (llth character of VIN being the number "6") will incorporate usage of a common "step reservoir" master cylinder.
Usage of this type master cylinder on Citation vehicles will be confined to only those produced at the above noted plant.
In order to insure proper service part procurement, WDDGM will identify by design designation the appropriate service part usage as illustrated below:
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.