SPECIAL POLICY: INCORRECT REAR AXLE OIL SEALS
SUBJECT: SPECIAL POLICY
92-4B-156 4B REAR AXLE JULY 1993
SUBJECT: SPECIAL POLICY ADJUSTMENT - INCORRECT REAR AXLE OIL SEALS
MODELS: 1990-1992 C6H, C7H TOPKICK/KODIAK TRUCKS WITH STEMCO BRAND REAR WHEEL SEALS (RPO G98) AND 15,000 LB. AXLES (RPO H10 AND RPO H16)
CONDITION
GENERAL MOTORS HAS DETERMINED THAT CERTAIN 1990-92 TOPKICK/KODIAK MEDIUM DUTY TRUCKS ORDERED WITH OPTIONAL "STEMCO" BRAND REAR AXLE OIL SEALS WERE BUILT WITH THE STANDARD REAR AXLE OIL SEALS. THIS CONDITION WILL NOT AFFECT VEHICLE PERFORMANCE BUT, THE CUSTOMERS WERE CHARGED FOR THE OPTION.
SPECIAL POLICY ADJUSTMENT
ORIGINAL OWNERS OF RECORD WHO PURCHASED RPO G98 STEMCO BRAND REAR WHEEL SEALS WILL BE CONTACTED AND OFFERED A CHOICE OF THE FOLLOWING:
A. $80.00 TOTAL OPTION REIMBURSEMENT ADJUSTMENT INCENTIVE
OR
B. INSTALLATION OF STEMCO REAR WHEEL SEALS AT NO CHARGE.
WHEN THE ORIGINAL PURCHASER REQUESTS REIMBURSEMENT, THAT CUSTOMER MUST SIGN AND DATE THE OPTION SELECTION FORM INCLUDED AS PART OF THE OWNER LETTER (EXTRA COPIES TO BE REPRODUCED LOCALLY, IF NEEDED). THE SIGNED FORM AND A COPY OF THE CHECK ISSUED TO THE OWNER IS TO BE ATTACHED TO THE DEALER'S FILE COPY OF THE REQUEST WITHIN THIRTY (30) DAYS AFTER DEALER CREDIT IS RECEIVED, AND RETAINED FOR TWENTY-FOUR (24) MONTHS FROM DATE OF CREDIT. THE SPECIAL POLICY ADJUSTMENT WILL REMAIN IN EFFECT UNTIL JULY 1994 WITH NO MILEAGE RESTRICTION.
VEHICLES INVOLVED
INVOLVED ARE CERTAIN 1990-1992 TOPKICK/KODIAK MEDIUM DUTY TRUCKS WITH STEMCO BRAND REAR WHEEL SEALS (RPO G98) BUILT WITHIN THE FOLLOWING DATES.
MODEL YEAR FROM THROUGH 1990 SOP EOP 1991 SOP EOP 1992 SOP AUGUST 7, 1992
OWNER NOTIFICATION
ORIGINAL OWNERS OF RECORD WHO PURCHASED RPO G98 STEMCO BRAND REAR WHEEL SEALS WILL BE NOTIFIED OF THIS SPECIAL POLICY ADJUSTMENT BY GMC TRUCK DIVISION (SEE COPY OF OWNER LETTER INCLUDED WITH THIS BULLETIN).
PARTS INFORMATION
WHEN REQUIRED, PARTS ARE TO BE OBTAINED FROM GENERAL MOTORS SERVICE PARTS OPERATIONS (GMSPO). TO ENSURE THAT THESE PARTS ARE OBTAINED AS SOON AS POSSIBLE, THEY SHOULD BE ORDERED ON A C.I.O. ORDER WITH NO SPECIAL INSTRUCTION CODE, BUT ORDER UNDER AN ADVISABLE CODE (2).
PART QUANTITY NUMBER DESCRIPTION PER VEHICLE
2485338 REAR WHEEL BEARING 2 RETAINER
2094440 STEMCO BRAND REAR 2 WHEEL SEAL
SERVICE PROCEDURE (SEE FIGURE 1.)
1. SECURELY BLOCK FRONT WHEELS.
2. RAISE REAR AXLE AND SECURE WITH STANDS.
3. REMOVE REAR DRIVERS SIDE TIRE AND RIM ASSEMBLY OR TIRE AND WHEEL ASSEMBLY. USE WHEEL DOLLY (1).
4. REMOVE REAR AXLE SHAFT, OUTER ADJUSTING NUT (2), NUT LOCK (3) AND INNER ADJUSTING NUT (4).
5. RELEASE BRAKES AND BACK OFF SLACK ADJUSTER.
6. REMOVE HUB AND DRUM, WHEEL AND ROTOR, HUB AND ROTOR OR WHEEL (5) AND DRUM (6).
7. REMOVE OUTER BEARING (7) AND CUP (8).
8. REMOVE NATIONAL BRAND REAR SEAL (9) AND BEARING (10).
9. REMOVE SEAL SLEEVE (11) BY TAPPING AROUND THE OUTSIDE DIAMETER WITH A HAMMER. USE A BLUNT CHISEL TO CUT INTO THE SLEEVE INNER FLANGE.
10. WASH BEARINGS (7 AND 10) IN CLEAN MINERAL SPIRITS.
IMPORTANT: DO NOT SPIN-DRY BEARINGS.
11. CLEAN HUBS OR WHEELS AND AXLE HOUSING TUBE WITH A LINT-FREE RAG AND AN ACCEPTABLE SOLVENT SUCH AS BRAKE CLEANER OR EQUIVALENT.
12. LUBRICATE BEARINGS (7 AND 10), AXLE HOUSING TUBE, INSIDE OF HUB OR WHEEL, OIL LIP SEAL AND HOUSING SEAL LIP CONTACT SURFACE WITH SYNTHETIC LUBRICANT GM PART NUMBER 12345841.
IMPORTANT: COAT WHEEL BEARINGS AND SEALS WITH SYNTHETIC LUBRICANT BEFORE INSTALLATION. DO NOT PACK WHEEL BEARINGS WITH GREASE. GREASE ATTRACTS DIRT AND PREVENTS PROPER LUBRICANT FLOW INTO WHEEL ENDS.
13. INSTALL REAR WHEEL BEARING RETAINER SEAL GM PART NUMBER 2485338.
14. INSTALL INNER BEARING CUP (12) AND BEARING (10).
15. INSTALL STEMCO BRAND REAR WHEEL SEAL GM PART NUMBER 2094440. BE SURE SEAL LIP FACES INWARD AND USE J25376-A TO EXERT FORCE ON OUTER EDGE OF THE SEAL TO SEAT IT.
16. INSTALL THE HUB AND DRUM, WHEEL AND ROTOR, HUB AND ROTOR OR WHEEL AND DRUM. DO NOT DAMAGE THE INNER OIL SEAL (9).
17. INSTALL OUTER CUP (8) AND BEARING (7). PUSH FIRMLY INTO PLACE.
18. INSTALL INNER ADJUSTING NUT (4), LOCK NUT (3) AND OUTER ADJUSTING NUT (2).
19. ADJUST BEARINGS (7 AND 10). REFER TO BEARING ADJUSTMENT IN THE MEDIUM DUTY SERVICE MANUAL.
20. INSTALL AXLE SHAFT.
21. ADJUST BRAKES.
22. REPEAT STEPS 2-21 FOR THE RIGHT SIDE REAR WHEEL SEAL.
23. CHECK REAR AXLE SYNTHETIC LUBRICANT LEVEL.
WARRANTY INFORMATION
LABOR OPERATION LABOR *NET NUMBER DESCRIPTION TIME ITEM
T7661 LEFT AND RIGHT 3.6 -- SIDE INNER OIL SEAL - REPLACE
T7666 ADJUSTMENT 0.1 80.0 INCENTIVE REIMBURSEMENT
*THIS AMOUNT IS TO BE ENTERED IN THE NET ITEM COLUMN ON THE WARRANTY CLAIM. USE TYPE CODE "M." ONE-TENTH ADMINISTRATIVE ALLOWANCE FOR REIMBURSEMENT ADJUSTMENT INCENTIVE ONLY.
DEAR GM TOPKICK OR KODIAK OWNER,
GENERAL MOTORS HAS DETERMINED THAT YOUR VEHICLE WAS ORDERED WITH RPO G98 "STEMCO REAR AXLE SEALS," BUT WAS BUILT WITH STANDARD NATIONAL SEALS.
--------------------SPECIAL POLICY ADJUSTMENT-------------------------
GMC TRUCK DIVISION IS OFFERING OWNERS OF RECORD A CHOICE OF THE FOLLOWING:
OPTION A - $80 TOTAL OPTION REIMBURSEMENT ADJUSTMENT INCENTIVE
OR
OPTION B - INSTALLATION OF STEMCO REAR AXLE SEALS AT NO CHARGE TO YOU
THIS SPECIAL POLICY ADJUSTMENT WILL REMAIN IN EFFECT UNTIL JULY 1994 WITH NO RESTRICTIONS.
------------------- WHAT SHOULD YOU DO ----------------------------
CONTACT YOUR GM TOPKICK OR KODIAK MEDIUM DUTY DEALER TO REQUEST REIMBURSEMENT OR MAKE ARRANGEMENTS TO HAVE THE STEMCO REAR AXLE SEALS INSTALLED AT NO CHARGE TO YOU. PLEASE COMPLETE AND SIGN THE "OPTION SELECTION FORM" BELOW AND PRESENT IT TO YOUR GM MEDIUM DUTY DEALER AS NOTIFICATION OF YOUR CHOICE.
GMC TRUCK DIVISION IS TAKING THIS ACTION IN THE INTEREST OF YOUR CONTINUED SATISFACTION WITH YOUR TOPKICK OR KODIAK TRUCK.
GMC TRUCK DIVISION GENERAL MOTORS CORPORATION
--------------------------------------------------------------------- OPTION SELECTION FORM
I AM THE OWNER OF A 1990, 1991, OR A 1992 GMC TOPKICK OR CHEVROLET KODIAK TRUCK, VEHICLE IDENTIFICATION NUMBER ______________________ AND SELECT:
__________ OPTION A - $80 TOTAL OPTION REIMBURSEMENT ADJUSTMENT INCENTIVE
__________ OPTION B - INSTALLATION OF STEMCO REAR AXLE SEALS AT NO CHARGE
____________________________ ____________ ORIGINAL OWNER SIGNATURE DATE
(
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.
