By David Bailey

DETROIT (Reuters) - The United Auto Workers and American Axle & Manufacturing Holdings (AXL.N: Quote, Profile, Research) have made little progress toward ending a two-week strike and no formal meetings were set for Tuesday, representatives of both sides said.

The apparent breakdown in talks raised the specter of further production interruptions for major customer General Motors Corp (GM.N: Quote, Profile, Research), which already has shut or partly curbed work at nearly 30 facilities, and other auto parts suppliers.

"Unfortunately, there has been a breakdown in communication there although the dialogue is still underway," UAW President Ron Gettelfinger said Tuesday in an interview on Detroit radio station WJR.

"There has not been really any movement toward a settlement there," Gettelfinger said, adding that "from day one, it has been American Axle's way or the highway."

American Axle spokeswoman Renee Rogers said there were ongoing discussions between the two sides and said meetings were scheduled for later in the week.

The strike has idled American Axle facilities in the United States and has been seen as getting increasingly costly for GM, where those nearly 30 facilities in the United States and Canada have nearly 42,000 hourly and salaried workers.

Representatives from the union and American Axle resumed talks last week for the first time since the strike started on Feb. 26. They negotiated through the weekend and met again on Monday, but have not met on Tuesday.

More than 3,600 UAW workers at five American Axle facilities are on strike. GM, which sold off the plants to an investor group that formed American Axle in 1994, accounts for about 80 percent of the company's revenue.