WHEELS:LUGS/NUTS/BOLTS/STUDS
Dec 30, 1991
42 units potentially affected
The defect: THE WHEEL STUD USED FOR THE HUBS ON THE REAR-STEER WHEELS HAS A DIAMETER TOO SMALL TO HANDLE THE MAXIMUM RECOMMENDED TORQUE, AND WILL SUFFER FROM A FATIGUE FAILURE FROM THE CYCLIC STRESSES OF VEHICLE USE AND THE TORQUING OF THE WHEEL NUT.
The risk: FAILURE OF ONE WHEEL STUD CAN LEAD TO SUBSEQUENT FAILURESOF ALL THE STUDS ON THE HUB, LEADING TO SEPARATION OF THE WHEEL AND TIREASSEMBLY FROM A VEHICLE, RESULTING IN LOSS OF STEERING CONTROL AND AN ACCIDENT.
The remedy: REPLACE THE WHEEL STUD WITH A NEWER, WIDER DIAMETER WHEEL STUD.
OSHKOSH TRUCK CORPORATIONView on NHTSA.gov