CREW CAB REAR SEAT BACK FALLS FORWARD

SUBJECT: CREW CAB REAR SEAT BACK FALLS FORWARD (INSTALL HINGE SPRINGS)

MODELS: 1995-96 CHEVROLET AND GMC C/K CREW CAB WITH RPO AM7

CONDITION:

CUSTOMERS MAY COMMENT THAT THE REAR SEAT BACK ON THEIR CREW CAB MODEL TRUCK FALLS FORWARD UNDER NORMAL DRIVING CONDITIONS.

CAUSE:

THE SEAT DESIGN DOES NOT INCLUDE SUFFICIENT SPRING TENSION IN THE HINGES TO HOLD THE SEAT BACK UPRIGHT DURING NORMAL DRIVING CONDITIONS.

THE SEAT DESIGN DOES INCLUDE AN INERTIA SEAT BACK LATCH TO HOLD THE SEAT BACK UPRIGHT IN A CRASH.

CORRECTION:

INSTALL A SET OF FLEXILATOR SPRINGS TO THE REAR SEAT HINGES. THESE SPRINGS PROVIDE THE REQUIRED TENSION TO HOLD THE REAR SEAT BACK IN AN UPRIGHT POSITION DURING NORMAL DRIVING.

SERVICE PROCEDURE 1. TO OBTAIN ACCESS TO THE REAR SEAT HINGE, REMOVE THE FOUR UPHOLSTERY HOG RINGS CLOSEST TO THE HINGE AND CAREFULLY PULL THE TRIM AND FOAM CLEAR FROM THE HINGE. 2. REMOVE THE GOLD COLORED MARRIAGE BOLT FROM OUTSIDE HINGE (FIGURE 1). 3. REMOVE THE PLASTIC HINGE COVER (FIGURE 1). 4. REINSTALL MARRIAGE BOLT. 5. AS A GUIDE FOR THE CENTER PUNCH AND DRILL OPERATION, PLACE THE TEMPLATE (FIGURE 2, ITEM 3) IN POSITION USING THE CENTER OF THE MARRIAGE BOLT HEAD AS A GUIDE FOR THE LOWER POSITION (FIGURE 2, ITEM 2), AND A SUITABLE LOCATING PIN (DRILL BIT, BOLT, ETC.) IN EXISTING UPPER HOLE (FIGURE 2, ITEM 1) FOR THE UPPER POSITION. 6. CENTER PUNCH AND DRILL TWO 5.94 MM (0.234 INCH) HOLES AS INDICATED BY THE ARROWS IN FIGURE 2. 7. RUN THREAD FORMING BOLT, PART NUMBER 15633613, INTO THE DRILLED UPPER HOLE. 8. PLACE SPRING, PART NUMBER 12387712, OVER THIS BOLT (FIGURE 3). 9. WITH LOWER END OF SPRING ATTACHED, INSERT AND TIGHTEN LOWER BOLT, PART NUMBER 15633613, IN THE DRILLED BOTTOM HOLE. 10. RETURN SEAT BACK FOAM AND COVER TO ORIGINAL POSITION. IMPORTANT: PLASTIC HINGE COVER CANNOT BE REINSTALLED AND MAY BE DISCARDED. 11. REINSTALL HOG RINGS IN ORIGINAL LOCATIONS. 12. REPEAT PROCEDURE FOR THE OTHER SIDE OF THE SEAT.

PARTS INFORMATION

P/N DESCRIPTION QTY 15633613 THREAD FORMING BOLT 4 12387712 SPRING 2

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

WARRANTY INFORMATION

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OP DESCRIPTION LABOR TIME C7428 SPRING, REAR SEAT BACK BOTH 0.5 HR FLEXILATOR - REPLACE ADD: FOR INITIAL INSTALLATION 0.2 HR

IMPORTANT: LABOR OPERATION IS CODED TO BASE VEHICLE COVERAGE IN THE WARRANTY SYSTEM.

FIGURES: 5

CAPTIONS: 0

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.

COPYRIGHT 1996 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.