Workers at the GM-Toyota NUMMI plant are threatening to strike over a new contract that was proposed by the joint venture. The proposed contract would include a five-year wage freeze, a 30% co-pay of medical insurance premiums, a sharing of retiree benefit coverage costs, and a two-tier wage and benefit system (where new hires are offered less pay and benefits than current employees). Additionally, jobs have been lost from the plant due to increased efficiency, or moved to GM or Toyota's operations. While these talks are completely unrelated to the UAW's general contract with the Big 3, it likely provides some clues on what will be proposed by the automakers in 2007. The UAW may not be used to this treatment, but it's very similar to what many other unions have been forced to accept in recent years.