Installation of the 1989 front suspension hub and bearing seal differs from prior years. As shown in Figure 1, the seal is installed on the outboard side of the steering knuckle.
Fill the cavity between the hub/bearing seal and the bearing with grease. Refer to the 1989 Service Manual, Section 3C, Front Suspension, for complete hub/bearing seal removal and installation procedure.
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.