Ford job fears: Bridgend MP says families deeply worried
Ford is projecting a reduction of 1,160 workers by 2021, according to a leaked document from the company seen by BBC Wales.
Mass meetings are being held at Ford's Bridgend engine plant later.
The projection, which would leave 600 workers at the site, is based on the assumption that it is unable to bring any new work in.
Ford would not comment on the document but said it could "fully understand" concern for the longer term.
At Prime Minister's Questions, Bridgend MP Madeleine Moon said people were "deeply worried" by talk of job cuts at Ford.
Theresa May said ministers had been talking to the firm and others in the automotive sector, insisting the Bridgend plant was very important.
- From the section Wales politics