Defect summary
ON CERTAIN TRUCKS, THE NUT USED TO RETAIN THE STEERING SHAFT MAY OR MAY NOT BE A LOCK NUT THAT HAS THE LOCKING FEATURE. A LOCK NUT IS REQUIRED TO PROVIDE ADDITIONAL RESISTANCE TO ENSURE THAT THE NUT DOES NOT COME LOOSE.
Consequence
IF THE NUT WERE TO COME LOOSE AND BE LEFT UNTREATED, THE STEERING SHAFT COULD POTENTIALLY SEPARATE INCREASING THE RISK OF A CRASH.
Remedy
DEALERS WILL REPLACE THE STEERING SHAFT PINCH BOLTS AND LOCKNUTS FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 24, 2007. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-528-6586.
Notes
MACK TRUCKS RECALL NO. SC0326.CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.
Source: NHTSA ODI recalls file, campaign 07V322000. Text as published by NHTSA.