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Trucking component maker ArvinMeritor and Wal-Mart Transportation have agreed to develop a dual-mode, diesel-electric drivetrain for a Class 8 tractor, the two said.

When Foodliner Inc., a liquid and dry-bulk carrier based in Dubuque, Iowa, put in a mobile communications system to track the location of its trucks and monitor the performance of its drivers, corporate controller Tom Stueck said he expected some resistance.

Canadian transportation firm TransForce Income Fund said Thursday it completed its acquisition of Westfreight Systems and Westfreight Holdings (U.S.A.). Terms were not disclosed.

Engine manufacturers and trucking officials said they recognize the need for onboard diagnostic systems to monitor the performance of emission-treatment systems because diesel engines are growing in complexity.

Diesel engine manufacturer Cummins Inc. said late Tuesday that the Environmental Protection Agency has certified the company’s medium- and heavy-duty truck engines for 2007.