CAMPAIGN: FRONT DRIVE AXLE NUT REPLACEMENT

SUBJECT: FRONT DRIVE AXLE NUT REPLACEMENT. CERTAIN 1989 "E" BODIES

CONDITION

CADILLAC HAS DETERMINED THAT YOUR VEHICLE MAY HAVE BEEN ASSEMBLED WITH FRONT DRIVE AXLE NUTS THAT MAY LOOSEN SLIGHTLY. IF THIS OCCURS, THE CLAMP LOAD FOR THE WHEEL BEARING MAY DECREASE. ALTHOUGH WHEEL RETENTION AND STEERING CONTROL WILL NOT BE AFFECTED, THIS CONDITION COULD LEAD TO REDUCED BEARING LIFE RESULTING IN NOISY FRONT WHEEL BEARINGS.

TO PREVENT THIS CONDITION FROM OCCURRING, DEALERS WILL BE REQUIRED TO REPLACE BOTH FRONT DRIVE AXLE NUTS ON ALL AFFECTED VEHICLES. IN ADDITION, ON SOME VEHICLES DEALERS ARE TO INSPECT AND REPLACE, IF NECESSARY, AFFECTED WHEEL BEARING ASSEMBLIES. SPECIFICS ARE DETAILED IN THE VEHICLES INVOLVED AND SERVICE PROCEDURE SECTIONS OF THIS BULLETIN.

VEHICLES INVOLVED

CADILLAC

ALL 1989 ELDORADO AND SEVILLE MODEL VEHICLES WITHIN THE FOLLOWING VIN RANGES REQUIRE THIS CAMPAIGN.

BEGINNING THROUGH AND INCLUDING

GROUP I ELDORADO KU600001 KU602287 SEVILLE KU800001 KU801689

GROUP II ELDORADO KU602288 KU604323 SEVILLE KU801690 KU803239

BUICK

ALL 1989 RIVIERA AND REATTA MODELS WITHIN THE FOLLOWING VIN'S:

YEAR PLANT FROM THROUGH GROUP I 1989 HAMTRAMCK KU400001 KU401763 1989 REATTA CRAFT KB900001 KB901034 CENTRE

GROUP II 1989 HAMTRAMCK KU401764 KU403487 1989 REATTA CRAFT KB901035 KB901911 CENTRE

EACH GROUP HAS A SEPARATE SERVICE PROCEDURE.

OLDSMOBILE

ALL 1989 TORONADO AND TORFEO MODEL VEHICLES WITHIN THE FOLLOWING VIN'S:

GROUP I GROUP II BEGINNING THROUGH BEGINNING THROUGH KU300001 KU300995 KU300996 KU301851

OWNER NOTIFICATION

OWNERS OF VEHICLES AFFECTED BY THIS CAMPAIGN WILL BE NOTIFIED BY LETTER FROM CADILLAC MOTOR CAR COMPANY. A COPY OF THE OWNER LETTER IS ATTACHED.

DEALER LIST

A LIST OF VEHICLES INVOLVED, WHICH OUR RECORDS INDICATE WERE SOLD BY OR SHIPPED TO YOU, IS ENCLOSED FOR YOUR FOLLOW-UP. THIS LISTING CONTAINS OWNER NAMES AND ADDRESSES OBTAINED FROM CADILLAC DELIVERY RECORDS. YOU ARE URGED TO LIMIT THE USE OF THIS LIST TO THE FOLLOW-UP NECESSARY TO COMPLETE THIS CAMPAIGN. IF NO LIST IS ENCLOSED, NONE OF THE SUSPECT VEHICLES ARE KNOWN TO BE IN YOUR AREA.

WE SUGGEST YOU USE THE LIST OF VEHICLES INVOLVED TO ORDER YOUR INITIAL PARTS REQUIREMENTS AS SOON AS POSSIBLE.

DEALER CAMPAIGN RESPONSIBILITY

DEALERS ARE TO SERVICE ALL VEHICLE INVOLVED IN THIS CAMPAIGN, AT NO CHANGE TO OWNERS, REGARDLESS OF MILEAGE, AGE OF VEHICLE, OR OWNERSHIP.

WHENEVER A VEHICLE SUBJECT TO THIS CAMPAIGN IS TAKEN INTO USED CAR INVENTORY, DEALERS ARE TO TAKE THE STEPS NECESSARY TO BE SURE THE CAMPAIGN CORRECTION HAS BEEN MADE BEFORE RESELLING THE VEHICLE.

IN ADDITION, DEALERS ARE TO PERFORM THE CAMPAIGN ON ALL AFFECTED VEHICLES AS THEY ARE BROUGHT IN FOR ANY KIND OF SERVICE.

PARTS INFORMATION

THE PARTS REQUIRED TO COMPLETE THIS CAMPAIGN SHOULD BE OBTAINED FROM GMSPO. A DESCRIPTION IS PROVIDED BELOW:

NOTE: PARTS MUST BE ORDERED ACCORDING TO VIN RANGE. BE CERTAIN TO CHECK THE VIN OF THE VEHICLE BEING SERVICED TO OBTAIN THE CORRECT PARTS. REFER TO THE VEHICLES INVOLVED SECTION OF THIS BULLETIN.

VIN RANGE PART NUMBER DESCRIPTION QUANTITY

GROUP I 3634775 SERVICE KIT 1 7466961 HUB AND BEARING ASSEMBLY * 14084119 BEARING SEAL * 22529144 CALIPER BOLT *

GROUP II 14035592 TORQUE PREVAILING NUT 2 10049691 LARGE WASHER 2

* NOTE: IT IS ANTICIPATED THAT LESS THAN 10% OF THE WHEEL BEARING ASSEMBLIES WITHIN THE GROUP 1 VIN RANGES WILL REQUIRE REPLACEMENT. BEARING ASSEMBLIES ARE NOT INCLUDED IN THE SERVICE KIT AND MUST BE ORDERED SEPARATELY. PLEASE ADJUST YOUR PARTS ORDERS ACCORDINGLY.

IF THERE IS DIFFICULTY OBTAINING THESE PARTS USING NORMAL ORDERING PROCEDURES, DEALERS MAY PLACE A C.I.O. USING ADVISE CODE "2" WITH NO SPECIAL INSTRUCTION CODE. THE PARTS MAY ALSO BE ORDERED ON V.I.P. ORDER; HOWEVER UNLESS PRIOR ZONE APPROVAL IS OBTAINED, DEALERS WILL BE REQUIRED TO ABSORB ANY SURCHARGE INVOLVED UNDER THE V.I.P. SYSTEM.

SERVICE PROCEDURE

GROUP I

1. SUPPORT FRONT OF CAR WITH FLOOR JACK. DO NOT LIFT WHEELS FROM FLOOR.

2. REMOVE FRONT WHEEL COVERS OR WHEEL INSERTS.

3. LOOSEN DRIVE AXLE NUT ONE-SIXTH TURN (ONE FLAT).

4. TIGHTEN NUT TO ORIGINAL POSITION.

5. CHECK AND RECORD TORQUE TO LOOSEN DRIVE AXLE NUT.

6. REMOVE DRIVE AXLE NUT AND WASHER AND DISCARD.

7. IF TORQUE IN STEP 5 IS BELOW 100 NM (75 FT. LBS.) REPLACE HUB AND BEARING ASSEMBLE AND SEAL PER SERVICE INFORMATION MANUAL PROCEDURE.

8. INSTALL SPLINED WASHER ADAPTOR.

9. INSTALL NEW WASHER.

10. INSTALL NEW TPRQUE PREVAILING NUT AND TORQUE TO 145 NM (180 FT. LBS.)

11. INSTALL NUT RETAINER OVER NUT AND BE CERTAIN THAT THE THREE TABS LATCH INTO THE THREE NOTCHES IN THE SPLINED WASHER ADAPTER. IF TABS AND NOTCHES DO NOT ALIGN, TIGHTEN NUT FURTHER TO ALIGN. DO NOT EXCEED 275 NM (200 FT. LBS.).

12. INSTALL FRONT WHEEL COVERS OR WHEEL INSERTS.

13. REMOVE SUPPORT FROM FRONT OF CAR.

14. INSTALL CAMPAIGN COMPLETION LABEL.

GROUP II

1. SUPPORT FRONT OF CAR WITH FLOOR FACK. DO NOT LIFT WHEELS FROM FLOOR.

2. REMOVE FRONT WHEEL COVERS OR WHEEL INSERTS.

3. REMOVE DRIVE AXLE NUT AND WASHER AND DISCARD.

4. INSTALL NEW WASHER (P/N 10049691).

5. INSTALL NEW TORQUE PREVAILING NUT (P/N 14035592) AND TORQUE TO 245 NM (180 FT. LBS.).

6. INSTALL FRONT WHEEL COVERS OR WHEEL INSERTS.

7. REMOVE SUPPORT FROM FRONT OF CAR.

8. INSTALL CAMPAIGN COMPLETION LABEL.

CAMPAIGN COMPLETION LABEL

UPON COMPLETION OF THIS CAMPAIGN, A WHITE CAMPAIGN LABEL SHOULD BE AFFIXED ON A CLEAN, DRY SURFACE OF THE RADIATOR SUPPORT TIE BAR IN AN AREA CLEARLY VISIBLE WHEN THE HOOD IS RAISED. EACH LABEL PROVIDES SPACE TO PRINT IN INK (OR TYPE) COMPAIGN NUMBER 89-C-2 AND YOUR FIVE-DIGIT CADILLAC DEALER CODE. DEALERS ARE TO TAKE STEPS NECESSARY TO ENSURE THAT THE NUMBERS ARE PROPERLY RECORDED ON THE LABEL.

CREDIT

CREDIT FOR THIS CAMPAIGN WILL BE ISSUED UPON RECEIPT OF A PROPERLY PREPARED WARRANTY CLAIM AS FOLLOWS:

PART PARTS FAILURE LABOR LABOR* DESCRIPTION NUMBER ALLOWANCE CODE OPERATION HOURS

GROUP I

INSTALL SERVICE 3634775 ** 96 V5310 .4 KIT ONLY

INSTALL SERVICE 3634775 ** 96 V5311 .8 KIT AND ONE BRG ASSEMBLY

INSTALL SERVICE 3634775 ** 96 V5311 1.4 KIT AND TWO BRG ASSEMBLIES

GROUP II

INSTALL WASHERS 14035592 ** 96 V5312 .3 AND NUTS

* THIS LABOR TIME REPRESENTS THE ACTUAL TIME REQUIRED TO PERFORM THE CORRECTION. DEALERS SHOULD APPLY FOR 0.1 ADDITIONAL HOUR FOR ADMINISTRATIVE ALLOWANCE AS "OTHER LABOR HOURS".

** PARTS ALLOWANCE SHOULD BE TOTAL OF THE CURRENT GMSPO NET PLUS 30% OF ALL PARTS REQUIRED FOR THE REPAIR.

CADILLAC DISCLAIMER

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.