Driveline: universal jointRecall 96V-255 · Mack vehicles
MACK TRUCKS, INCORPORATED recall 96V-255 covers 1,590 Mack vehicles for a driveline: universal joint problem, reported to NHTSA on December 23, 1996.
Source: NHTSA recall 96V255000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
THE U-JOINT BEARING STRAP BOLTS WERE NOT PROPERLY TIGHTENED DURING ASSEMBLY.
The risk
INSUFFICIENT TORQUE CAN LEAD TO A BROKEN STRAP. IF THE STRAP BREAKS, THE DRIVESHAFT WOULD WOBBLE, POSSIBLY RESULTING IN SEPARATION. SUCH WOBBLING OR SEPARATION WOULD RESULT IN DAMAGE TO OTHER COMPONENTS OF THE VEHICLE AND ANY LOOSE FRAGMENT COULD FALL TO THE ROADWAY PRESENTING A HAZARD TO FOLLOWING VEHICLES.
The fix
DEALERS WILL INSTALL A NEW U-JOINT BEARING STRAP BOLTS.
OWNER NOTIFICATION BEGAN FEBRUARY 21, 1997. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1-610-709-3011.ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.