Year · Make · Model
What the National Highway Traffic Safety Administration knows about this vehicle: every recall, every consumer complaint, every defect investigation, every NCAP crash test. Sourced directly from NHTSA data feeds.
VEHICLE DESCRIPTION: SCHOOL BUSES AND HEAVY DUTY TRUCKS EQUIPPED WITH REAR AXLE ASSEMBLIES PRODUCED BY DANA SPICER. CERTAIN REAR AXLE ASSEMBLIES WERE IMPROPERLY HEAT TREATED WHICH COULD ALLOW PINION BREAKAGE AT THE PINION THREADS.
RiskCRACKS CAN INITIATE AND RESULT IN SEPARATION OF THE THREADED END OF THE PINION RESULTING IN SEPARATION OF THE YOKE AND DRIVE LINE FROM THE REAR AXLE INCREASING THE RISK OF A VEHICLE ACCIDENT.
FixDEALERS WILL REPLACE THE REAR AXLE CARRIER/PINION ASSEMBLY.
THE DRIVE AXLE HOUSINGS CONSIST OF A PLATE STEEL CENTER SECTION AND TWO FORGED SPINDLES, ONE OF WHICH IS WELDED TO EACH END OF THE CENTER SECTION. EACH SPINDLE CONTAINS A KEYWAY SLOT IN WHICH THE LOCKING TAB FOR THE WHEEL BEARING NUT LOCKING MECHANISM IS INSERTED. THE LENGTH OF THE KEYWAY SLOT MAY NOT BE LONG ENOUGH TO ACCOMMODATE THE TAB CAUSING THE TAB TO BE DEFORMED OR DAMAGED DURING INSTALLATION.
RiskTHIS LOCKING TAB PREVENTS THE WHEEL BEARING NUT FROM LOOSENING DURING VEHICLE OPERATION. IF THIS TAB IS DEFORMED, THE NUT CAN LOOSEN ALLOWING THE WHEEL TO SEPARATE FROM THE AXLE INCREASING THE RISK OF A VEHICLE ACCIDENT.
FixDEALERS WILL REPLACE THE DRIVE AXLE HOUSING NUTS WITH A CONVENTIONAL WHEEL NUT HARDWARE SYSTEM.