ARVINMERITOR TIE ROD END SERVICE KITS SHIPPED BETWEEN MARCH 1 AND DECEMBER 1, 2000. THE DATE CODES INVOLVED ARE 9L1, 9L2, 9L3, 9L4, 9L5, 9M1, 9M2, 9M3, 9M4, OA1, OA2, OA3, OA4, OA5, OB1, OB2, OB3, OB4, OC1, OC2, OC3, OC4, OD1, OD2, OD3, OD4, OE1, OE2, OF2, OF3, OF4, OG1, OG2, OG3, OG4. THE TIE ROD BALL-SOCKET BEARINGS HAVE A BELOW SPECIFICATION CASE DEPTH AND/OR HARDNESS WHICH CAN LEAD TO PREMATURE DETERIORATION OF THE SOCKET IN SOME APPLICATIONS. THIS COULD LEAD TO TIE ROD END BALL SEPARATION FROM THE SOCKET.