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FRANKFORT, Ky. — ArvinMeritor Inc. is about to launch a new line of trailing-arm air-ride trailer suspensions specifically designed for fleets that operate in vocational markets.

Truck and auto components maker ArvinMeritor Inc. said Tuesday it posted a second-quarter profit on cost cuts and higher auto production.

Meritor WABCO Vehicle Control Systems and Iteris Inc. said they have formed a partnership to streamline and simplify delivery of critical data about vehicle safety and performance to their mutual customers.

Heavy-duty trucking supplier ArvinMeritor Inc. last week won an antitrust case against competitor Eaton Corp., as a federal court jury found Eaton had made deals with truck makers that shut ArvinMeritor out of the heavy transmission market.