THIS BULLETIN IS BEING ISSUED TO REVISE THE PROCEDURE TO REPLACE THE WHEEL STUD IN SECTION 3C OF THE SERVICE MANUAL.
WHEEL STUD
IF ONE STUD IS DAMAGED, REPLACE ALL THE STUDS. A LOOSE-RUNNING WHEEL MAY CAUSE ONLY ONE STUD TO BREAK, BUT THE OTHER STUDS MAY HAVE INTERNAL FATIGUE. REPLACING ONLY THE BROKEN STUD AND REMOUNTING THE WHEEL MAY CAUSE FURTHER DAMAGE AND PERSONAL INJURY. IF THE STUD HOLES IN THE WHEELS HAVE BECOME ENLARGED OR DISTORTED, REPLACE THE WHEEL.
REMOVE
FIGURE 1
TOOL REQUIRED: J 6627-A WHEEL STUD REMOVER
1. RAISE AND SUITABLY SUPPORT THE VEHICLE. REFER TO GENERAL VEHICLE LIFTING AND JACKING IN GENERAL INFORMATION.
2. FRONT TIRES/WHEELS. REFER TO WHEEL REMOVAL IN TIRES AND WHEELS.
3. BRAKE CALIPER AND CALIPER CARRIER. REFER TO CALIPER CARRIER IN FRONT DISC BRAKES.
4. LOCKING HUB (FOUR-WHEEL DRIVE MODELS). REFER TO LOCKING HUBS- FOUR WHEEL DRIVE MODELS.
5. HUB END CAP (TWO-WHEEL DRIVE MODELS).
6. BRAKE ROTOR FROM WHEEL HUB. REFER TO BRAKE ROTOR IN FRONT DISC BRAKES.
7. WHEEL HUB (ABS EQUIPPED). REFER TO WHEEL HUB AND BEARING.
8. RELUCTOR RING (ABS EQUIPPED). REFER TO RELUCTOR RING IN ANTILOCK BRAKE SYSTEM.
9. INSTALL A WHEEL STUD NUT ONTO THE WHEEL STUD.
10. WHEEL STUD FROM HUB USING J 6627-A.
INSTALL
FIGURE 2
1. WASHERS ON WHEEL STUD AND PULL INTO POSITION WITH WHEEL NUT.
2. REMOVE WHEEL NUT AND WASHERS.
3. RELUCTOR RING (ABS EQUIPPED). REFER TO RELUCTOR RING IN ANTILOCK BRAKE SYSTEM.
4. WHEEL HUB (ABS EQUIPPED). REFER TO WHEEL HUB AND BEARING.
5. BRAKE ROTOR TO WHEEL HUB. REFER TO BRAKE ROTOR IN FRONT DISC BRAKES.
6. LOCKING HUB (FOUR-WHEEL DRIVE MODELS). REFER TO LOCKING HUBS- FOUR WHEEL DRIVE MODELS.
7. HUB END CAP (TWO-WHEEL DRIVE MODELS).
8. BRAKE CALIPER AND CALIPER CARRIER. REFER TO CALIPER ASSEMBLY IN FRONT DISC BRAKES.
9. FRONT TIRES/WHEELS. REFER TO WHEEL INSTALLATION IN WHEELS AND TIRES.
FIGURES: 02 ATTACHMENTS: 00
FIGURE 1: 1. J6627-A
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.
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