The Associated PressGM confirms plant shutdownsDetroit Free PressBy TIM HIGGINS • FREE PRESS BUSINESS WRITER • April 23, 2009 General Motors Corp. confirmed this afternoon that it is planning extended shutdowns this summer at its North American assembly, stamping and powertrain factories - a move that will cut about ...Video: Sources: GM to Shut Many Plants Up to 9 Weeks The Associated PressGM slashes summer production, cites Delphi risk ReutersThe Associated Press - Bizjournals.com - Wall Street Journal - AFPall 1,361 news articles