FRONT TIRE TREAD CONTACTS LOWER INNER FENDER BOLTS. GMC Truck Sonoma Pickup

SUBJECT: FRONT TIRE TREAD CONTACTS LOWER INNER FENDER BOLTS (REPLACE LOWER BOLTS)

MODELS: 1994-96 CHEVROLET AND GMC T MODELS WITH HIGH WIDER OPTION (RPO ZR2)

CONDITION:

SOME OWNERS MAY COMMENT THAT WHEN TURNING, THE FRONT TIRE TREAD RUBS AGAINST THE INNER FENDER LOWER BOLTS AND DAMAGES THE TREAD.

CAUSE:

THE INSTALLATION OF NON-OEM WHEELS AND/OR TIRES MAY CONTRIBUTE TO TIRE TO INNER FENDER BOLT CONTACT. ALSO, IF THE STEERING ALIGNMENT, INCLUDING SUSPENSION "Z" HEIGHT IS NOT WITHIN THE SPECIFICATIONS IN SECTION 3A OF THE S/T TRUCK SERVICE MANUAL, TIRE TREAD TO INNER FENDER BOLT CONTACT CAN OCCUR.

CORRECTION:

REPLACE THE TWO LOWER REAR INNER FENDER HEX HEAD BOLTS WITH PAN HEAD BOLTS. THESE BOLTS PROVIDE ADDITIONAL TIRE TO BOLT HEAD CLEARANCE AND REDUCE THE POSSIBILITY OF TREAD DAMAGE.

SERVICE PROCEDURE:

NOTICE: ALWAYS USE THE CORRECT FASTENER IN THE PROPER LOCATION. WHEN YOU REPLACE A FASTENER, USE ONLY THE EXACT PART NUMBER FOR THAT APPLICATION GENERAL MOTORS WILL CALL OUT THE FASTENERS THAT REQUIRE THREAD LOCKERS OR THREAD SEALANT. UNLESS OTHERWISE SPECIFIED, DO NOT USE SUPPLEMENTAL COATINGS (PAINTS, GREASES, OR OTHER CORROSION INHIBITORS) ON THREADED FASTENERS OR FASTENER JOINT INTERFACES. GENERALLY, SUCH COATINGS ADVERSELY AFFECT THE FASTENER TORQUE AND JOINT CLAMPING FORCE, AND MAY DAMAGE THE FASTENER. WHEN YOU INSTALL FASTENERS, USE THE CORRECT TIGHTENING SEQUENCE AND SPECIFICATIONS. FOLLOWING THESE INSTRUCTIONS CAN HELP YOU AVOID DAMAGE TO PARTS AND SYSTEMS.

1. REMOVE THE TWO REAR LOWER INNER FENDER TO WHEEL HOUSE PANEL BOLTS. 2. INSTALL NEW BOLTS (P/N 15715627) AND TORQUE TO 29 N.M (21 LB FT).

PARTS INFORMATION:

P/N DESCRIPTION QTY 15715627 PAN HEAD BOLT 4/VEHICLE

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OP DESCRIPTION LABOR TIME B7480 MOLDING, FRONT WHEEL OPENING-RIGHT USE PUBLISHED B7481 MOLDING, FRONT WHEEL OPENING-LEFT LABOR OPERATION TIME

FIGURES: 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.