TRW Inc. is losing the 80% stronghold it has on Ford Motor Co.'s seat-belt and air-bag business. The automaker recently told the supplier that the commitment for that level of sourcing will expire at the end of the 1998 model year. TRW Chairman & CEO Joseph T. Gorman says Ford's globalization efforts under Ford 2000 have "significantly influenced this decision." Mr. Gorman adds that both companies expect to continue their strong business relationship and that TRW already has booked business with Ford beyond 1998.