His most significant success was in the large number of heavy-duty trucks he manufactured.

The Ural-5323 is a 8x8 heavy-duty off-road truck specially designed for army service.

Order backlogs for heavy-duty trucks reached their highest level since the early 1990's.

First, since late last year orders for heavy-duty trucks have been growing at a faster clip than the economy.

The 413 remained in use in medium- and heavy-duty trucks until 1979.

It is also the most popular manufacturer of heavy-duty off-road trucks in America.

In particular, Caterpillar said, demand for heavy-duty trucks is expected to drop sharply from its 1995 peak.

The Louisville plant will continue to build medium- and heavy-duty trucks.

They expanded it into a major producer of heavy-duty trucks.

As a result, over the last year, orders for heavy-duty trucks - which often cost $80,000 to $100,000 - fell nearly 30 percent.