A brief, two-day strike at a Lear seat plant near Toronto has ended, with production at GM’s Oshawa plant back on schedule.

400 workers at Lear’s Whitby, Ontario plant walked off the job for two days after talks between Lear and the Canadian Auto Workers union broke down. The plant supplies seats for GM vehicles like the Chevrolet Camaro and Buick Regal, as well as other vehicles built at Oshawa.

Reuters reports that the consolidated line, which builds the current generation Impala, was down temporarily, while the flex line, which builds the Camaro and Regal, stayed active, although production was disrupted. Westcast, the prolific exhaust manifold manufacturer, is still affected by a strike at their Ontario plant, and no resolution with the CAW appears in sight.

The drama over a possible strike at the Big Three was averted this summer, but it ain’t over yet; roughly 75 employees walked off the job at two key suppliers this weekend.

Westcast and Lear were affected by the job action. Automotive News, citing information from Westcast, reports that the exhaust manifold supplier has a 65 percent market share among the Big Three, and a 51 percent market share overall. General Motors will take the brunt of the job action at Lear, as workers walked off the job at their seat plant near Toronto. The plant supplies seats for vehicles assembled at GM’s Oshawa plant.

A statement released by the union regarding Westcast said that

“In the last few days, we’ve learned that General Motors intends to move the current work performed at Wescast to a facility in China. There is absolutely no reason that our members should agree to a new contract that undercuts their own jobs.”

Westcast announced this summer that it had struck a deal to be bought by Sichuan Bohong Industry Co, but the deal has yet to be finalized.