We told you Monday that GM was considering cutting truck production at its Pontiac Assembly Center, and today it became official. Production of full-size GMC Sierra and Chevy Silverado pickups will be cut from 54.5 an hour to 45 an hour starting in September.

The plant employs 2,800 hourly workers and 300 temporary workers. GM spokesman Tom Wickham said Tuesday that an undetermined number of those temps would be the first to lose their jobs. The Detroit News was estimating about 500 total workers could be affected.

Wickham said the cuts were necessary due to a decline in full-size and heavy-duty truck sales. He also said there were no plans to throttle production at GM's other truck plants.

[Source: The Associated Press via Yahoo News]