A Delco Electronics strike could shut GM plants.

About 7,700 union auto workers left their jobs at a plant in Kokomo, Ind., that makes, among other things, circuit boards for the electronic control modules installed in nearly all new General Motors cars. Delco spokesman William C. Draper said inventories are low at the Delco plant and at auto assembly plants across the nation. If the strike is not settled soon, Draper said, GM assembly plants--including the one in Van Nuys--could run out of the parts and could close “within days.”