The fall in sales for medium- and heavy-duty trucks slowed in June.
Sales of trucks in classes 4 through 8 fell 14.0 percent in June from a year earlier to 29,126 units.
Through the first half of 2008, sales in classes 4 through 8 fell 22.5 percent from the year-earlier period to 170,926.
In June, Class 4 sales dropped 41.2 percent to 4,907 units. Class 6 and 7 sales each dropped by about one fifth from a year earlier. Class 5 sales slid 5.5 percent to 4,579 vehicles. But Class 8 sales rose 9.5 percent in June to 11,637 units.
For the month, Ford Motor Co. fell to the No. 3 spot in the market. International, which passed Ford to become the market leader in May, posted a 17.0 percent gain to 5,434 units. Ford's sales of 5,423 units were off 39.8 percent.
Freightliner passed International for the market lead by selling 5,488 medium- and heavy-duty trucks in June, down 2.8 percent.
In year-to-date sales, Ford remains No. 1. Ford's sales of 35,685 units through the first half are off 27.3 percent. International follows with sales of 34,827 units, down 10.8 percent. Freightliner's sales of 32,574 units are off 30.6 percent.