NEW DOUBLE SEAL PILOT BEARING (NEW PART NUMBERS RELEASED)

SERVICE HAS RELEASED TWO NEW PILOT BEARINGS. THESE BEARINGS ARE DOUBLE SEAL BEARINGS THAT RESIST FOREIGN MATERIAL AND INCREASE DURABILITY. P/N 908439 REPLACES 907059 - 1.5" SPLINE PILOT P/N 908438 REPLACES 954573 - 1.75" SPLINE PILOT THESE NEW PILOT BEARINGS WERE USED BY PRODUCTION EFFECTIVE WITH SOP 1984 AND HAVE SUPERSEDED THE OLD PART NUMBERS AT WDDGM.

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.