OSHAWA, Ont. — General Motors of Canada has given autohaulers some of the best news they’ve heard in months, two Oshawa plants are expected to run three shifts per day by the end of the summer.

The latest shift will raise employment at the plant by 1,000 jobs to about 3,500 total. This will also see output of the Impala and Monte Carlo models jump by 450 to 1,533 units per day. Impalas generally account for about four-fifths of the plant’s production.

This actually the second GM plant in Oshawa to add a third shift. The truck plant has been building pickups on three shifts for almost a decade straight.

Michael Grimaldi, president of GM of Canada, left no doubt as to whom he credits for the expansion at the plant.

“I want to recognize the hard work of Oshawa car plant employees,” he says. “The plant has earned a reputation as one of the highest quality and most productive assembly plants in North America.”

GM, the country’s biggest auto maker, currently is building a new pre-paint facility near the two car plants and insiders say the company will likely announce a second phase later this year.