ON CERTAIN TRUCKS EQUIPPED WITH DANA SPICER INTEGRAL KNUCKLE AND STEER ARM ASSEMBLIES, THE STEER AXLE ASSEMBLIES MAY HAVE A LONGITUDINAL CRACK IN THE STEER ARM.
RiskIF THE CRACK SHOULD PROPAGATE OVER TIME, THE BALL COULD BECOME LOOSE RESULTING IN A LOSS OF STEERING, WHICH COULD RESULT IN A CRASH.
FixDEALERS WILL INSPECT AND REPLACE THE KNUCKLE AND STEER ARM ASSEMBLIES. OWNER NOTIFICATION BEGAN JANUARY 5, 2004. OWNERS SHOULD CONTACT KENWORTH AT 1-425-828-5440 OR PETERBILT AT 1-940-591-4201.