GM Service Manual Online
For 1990-2009 cars only

FWD SHAFT AIR DEFLECTOR PRODUCTION CHANGE

THE FRONT WHEEL DRIVE SHAFT AIR DEFLECTOR (SEE ILLUSTRATION) ON 1981 SKYLARKS BUILT AFTER VIN 1G4AC69X6BW165205 AND OMEGAS AFTER VIN BW 158468 (WILLOW RUN) AND 1G4AC37X2BT144176 (TARRYTOWN) ARE NO LONGER REQUIRED. THE NEW SILICONE SEAL IN THE DRIVE SHAFT HAS BEEN TESTED AND FOUND ACCEPTABLE IN THE OPERATING TEMPERATURES INVOLVED AND THEREFORE ELIMINATED THE NEED FOR THE AIR DEFLECTOR.

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.