Gary Cowger was months into a stint as chairman of General Motors' Adam Opel unit in Germany in 1998 when GM Chairman Jack Smith tapped him to be the company's top labor negotiator.
A costly and bitter UAW strike in Flint, Mich., recently had ended and Cowger brought in Mary Barra — then an executive assistant to Smith — to lead internal communications. Cowger would be Barra's boss and mentor for nearly a decade.
"It was clear she had the intellect and the interpersonal skills that we needed during a pretty tense time," Cowger said in late 2013, shortly before Barra took over as the first female CEO of a global automaker.
Cowger, a former president of GM North America, died Feb. 17 at his home near Dallas. He was 75.
Cowger had battled cancer for two years before his death, Judy DeMars, his former secretary at GM, told Automotive News.
He retired from GM in 2009, almost 45 years after being hired as a co-op s…