Despite operating six 20-hour days a week on overtime for more than two months, DaimlerChrysler AG's new Jeep Wrangler plant can't keep up with demand.

So, starting this weekend, the North Toledo plant partially run by suppliers will add occasional Sundays to its production schedule to help fill about 59,000 pending Wrangler orders from customers and dealers, mostly for the four-door Unlimited model, union and company officials said yesterday.

Those orders represent roughly three quarters of the total number of Wranglers sold nationwide last year.

"We've got a good problem," Dan Henneman, chairman of United Auto Workers Local 12's Jeep unit, told The Blade yesterday.