The union for 7,400 Boeing technical workers counts ballots Monday night in the re-vote on a contract that would replace pensions with a 401(k) retirement plan.

The technical unit split with engineers represented by the Society of Professional Engineering Employees in Aerospace in the Feb. 19 vote. The 15,500 engineers approved a new four-year contract.

Boeing left its offer on the table for the technical workers. The union bargaining unit made no recommendation on how members should vote.