For 1990-2009 cars

# 1990 AND PRIOR STEEL WHEELS NOT TO BE USED ON 1991-1992

#### SUBJECT: STEEL WHEELS PROM 1990 AND PRIOR "B AND D" CARS ARE NOT TO BE USED ON 1991-92 "B AND D" CARS (INFORMATIONAL)

VEHICLES AFFECTED: 1991-92 "B AND D" CARS

#### Condition:

---------- A concern exists that customers may use steel wheels from 1990 and prior years (which use English fasteners) that will not mate properly with 1991-92 production metric wheel nuts.

#### Cause:

------ Steel wheels from 1990 and prior years will go on but will not fit properly, because the metric wheel nuts do not mate properly with the English wheels.

#### Correction:

----------- When specifying steel wheels, use production 1991-92 steel wheels only, P/N 9591652 with wheel nuts, P/N 9590477 on 1991-92 vehicles.

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.