SERVICE BRAKES, AIR
VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS. THERE IS INTERFERENCE BETWEEN THE AIR BRAKE S-CAM AND THE END OF ONE OF THE KNUCKLE STUDS. AS THE BRAKE SHOE LINING WEARS, THE S-CAM ROTATION MAY BE LIMITED BY THE INTERFERING KNUCKLE STUD. IF THE S-CAM CAN NOT ROTATE THROUGH ITS FULL RANGE OF MOTION, THE BRAKING FORCE CAN NOT BE FULLY TRANSMITTED FROM THE BRAKE SHOE LININGS TO THE BRAKE DRUMS.
Remedy: DEALERS WILL SHORTEN THE INTERFERING KNUCKLE STUD TO ELIMINATE THE CLEARANCE PROBLEM.
944 vehicles affected
STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM
VEHICLE DESCRIPTION: HEAVY DUTY 4X4 AND 6X6 TRUCKS EQUIPPED WITH FABCO 12,000 POUND FRONT DRIVE AXLES. THE INTEGRAL TIE ROD ARM OF THESE AXLES FRACTURES FROM THE SPINDLE YOKE.
Remedy: OWNERS WILL BE PROVIDED WITH A REPLACEMENT KIT WHICH CONSISTS OF 2 SPINDLE YOKES, A STEERING ADJUSTMENT SCREW, AND MISCELLANEOUS PARTS ALONG WITH INSTALLATION INSTRUCTIONS.
1,463 vehicles affected