LeSabre V6-181 3.0L (1986)
Wheel Seal: Technical Service Bulletins
Suspension - Installation of Hub Bearing Seal
Ref. No.: 89-275-3
Corp. Ref. No.: 903301R
Fill the cavity between the hub/bearing seal and the bearing (see Figure 1) with GM 1052497 grease anytime the hub assembly is removed. Refer to the
1989 Service Information Manual (Section 3C, Front Suspension) for complete hub/bearing seal removal and installation procedure.
Steering knuckles for 1985-1988 Buick Electra and LeSabre models (except 1986 models with ABS) are being serviced with 1989 steering knuckles.
When installing these parts, it will be necessary to replace the hub and bearing seal and drive axle deflector ring. On 1987-1988 models with ABS the
wheel speed sensor must also be replaced. On 1986 models with ABS the wheel speed sensor is not compatible with the new knuckle, and the new wheel
speed sensor is not compatible with the 1986 ABS. Therefore, on this model it is necessary to replace the knuckle with the original style knuckle, seal,
and deflector ring. Refer to the GMSPO Service Parts Book for detailed part compatibility information.