EQUIPMENT DESCRIPTION: MODEL 20-EDL BALL SOCKET ASSEMBLIES INCORPORATED INTO ARVINMERITOR AXLES MANUFACTURED FROM OCTOBER 31, 1999, THROUGH MAY 31, 2000, AND FROM JUNE 12, 2000, THROUGH AUGUST 31, 2000. ARVINMERITOR HAS DECIDED TO EXPAND THE PREVIOUS TRW RECALL, 00E-047, TO INCLUDE ALL TRW PRODUCTION MODEL BALL SOCKET ASSEMBLIES. CERTAIN TRW 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.