Steering
Problem: On some heavy duty class 8 vehicles equipped with arvinmeritor axle assemblies which May have been manufactured with trw model 20EDL ball sockets, the tie rod ball-socket bearings have a below specification case depth and/or hardness which can lead to premature wear out of the socket in some applications.
Original NHTSA wording
ON SOME HEAVY DUTY CLASS 8 VEHICLES EQUIPPED WITH ARVINMERITOR AXLE ASSEMBLIES WHICH MAY HAVE BEEN MANUFACTURED WITH TRW MODEL 20EDL BALL SOCKETS, THE TIE ROD BALL-SOCKET BEARINGS HAVE A BELOW SPECIFICATION CASE DEPTH AND/OR HARDNESS WHICH CAN LEAD TO PREMATURE WEAR OUT OF THE SOCKET IN SOME APPLICATIONS.
Risk: If this condition occurs, the driver can lose steering control, possibly resulting in a vehicle crash.
Original NHTSA wording
IF THIS CONDITION OCCURS, THE DRIVER CAN LOSE STEERING CONTROL, POSSIBLY RESULTING IN A VEHICLE CRASH.
Remedy & notes
Dealers will replace the ball socket assemblies. This campaign supersedes NHTSA campaign nos. 01V-139.001 and 02V-037.002. Owner notification began July 25, 2002. 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 Volvo trucks at 1-800-528-6586.
Also, customers can contact the national highway traffic safety administration's auto safety hotline at 1-888-DASH-2-DOT (1-888-327-4236).