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Manufacturers of flatbed trailers say they are increasing production and rolling out new models to help haulers meet their customers’ rising demands as business picks up following the prolonged economic recession.

Class 8 engine installations in North America plummeted during the first half of 2013, dropping 21.2% to 119,057, WardsAuto.com reported.

Ritchie Bros. Auctioneers said its second-quarter profit slipped from a year ago to $30 million, or 28 cents per share, from $31.3 million, or 29 cents, a year ago.

Three component manufacturers reported mixed second-quarter results compared with the same period last year.

Eaton Corp. said Friday its second-quarter earnings rose, due in part to its $13 billion acquisition of Ireland-based Cooper Industries last year.

Meritor Inc. reported a loss for its fiscal third quarter and completed the sale of its 50% stake in a Brazilian company, the truck component maker said Wednesday.

Goodyear Tire & Rubber Co.’s second-quarter earnings more than doubled as its operating income jumped 27%, improving in all four of its global regions.

Engine maker Cummins Inc. said Tuesday its second-quarter earnings declined from a year ago, but sales increased on higher demand in the North American medium-duty truck market.

Commercial Vehicle Group reported a second-quarter loss, the truck and auto components maker said.