4472 TRANSFER CASE DIAGNOSTIC & EXCHANGE PROGRAM. Oldsmobile Bravada 1991

REVISION 04/14/92

THIS BULLETIN IS BEING REVISED TO UPDATE THE MODELS AND MODEL YEARS.

REVISION 12/17/92

THIS BULLETIN IS BEING REVISED TO ADD THE 1993 MODEL YEAR. ====================================================================

REVISION 09/23/93

********************************************************************** * THIS BULLETIN IS BEING REVISED TO ADVISE OF THE CONCLUSION OF THE* * EXCHANGE PROGRAM AND CANCEL AND REPLACE CORPORATE BULLETINS * * 067401R AND 867401R. ALL COPIES OF THESE BULLETINS SHOULD BE * * DESTROYED. * * * * DIVISION BULLETIN # PUBLISHED DATE * * * * GM*************************************************

SUBJECT: CONCLUSION OF BORG-WARNER TRANSFER CASE EXCHANGE PROGRAM

MODELS: 1989-93 K3 TRUCKS EQUIPPED WITH BORG * * CHEVROLET 93-82-7D JANUARY 1993 * * CHEVROLET 90-193-7D JUNE 1990 * * * * GM OF CANADA 90-7-103 MARCH 1990 * * * * OLDSMOBILE 93-T-43 MARCH 1993 * * * *********************-WARNER 1370, 4401 OR 4470 TRANSFER CASE 1990-93 L1 VANS AND ALL WHEEL DRIVE T VEHICLES EQUIPPED WITH BORG-WARNER 4472 TRANSFER CASE

EFFECTIVE JUNE 1, 1993 THE EXCHANGE PROGRAMS FOR BORG-WARNER 1370, 4401, 4470, AND 4472 ENDED. DEALERSHIPS WILL ASSUME RESPONSIBILITY FOR REQUIRED SERVICE ON THE TRANSFER CASES AFTER JUNE 1, 1993.

SERVICE ACTION:

1. GENERAL MOTORS SERVICE TRAINING: ALL WHEEL DRIVE / FOUR WHEEL DRIVE SYSTEMS - COURSE NUMBER 14003.04 (2 DAY CLASS) AVAILABLE AT YOUR LOCAL TRAINING CENTER.

2. ESSENTIAL SERVICE TOOLS: ALL ESSENTIAL TOOLS ARE IN DEALERSHIPS.

3. SERVICE PARTS: ALL SERVICE PARTS ARE AVAILABLE THROUGH GMSPO.

4. LABOR TIME GUIDE: THE LABOR TIME GUIDE INCLUDING INFORMATION FOR BORG-WARNER TRANSFER CASES IS COMPLETE AND IN DEALERSHIPS.

5. SERVICE MANUALS: ON-VEHICLE SERVICE INFORMATION IS AVAILABLE IN THE APPROPRIATE YEAR SERVICE MANUAL. TRANSFER CASE OVERHAUL INFORMATION IS AVAILABLE IN THE APPROPRIATE YEAR LIGHT DUTY TRUCK UNIT REPAIR MANUAL OR SERVICE MANUAL.

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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.