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Ford Motor Co. late Friday dropped its 2005 earnings forecast by 29%, due in part to slumping truck and sport utility vehicle sales.

TUCSON, Ariz. — Truck renting and leasing giant Ryder System said it would begin testing a series of regulatory-compliant engines during the last quarter of this year, and then establish a working maintenance and pricing plan for the new engines by the time tougher emission standards take effect in 2007.

More public companies are filing their earnings statements late, with some citing the federal Sarbanes-Oxley law that sets strict accounting liability standards, the Wall Street Journal reported Monday.

Truck drivers were stranded at truck stops in Colorado as the region around Denver was pounded by a spring blizzard Sunday, the Associated Press reported.

Crude oil prices fell in early intraday trading on the New York Mercantile Exchange Monday before climbing back above $53 a barrel at the close, Bloomberg reported.

Trailer maker Wabash National said March 30 it would double the standard warranty to 10 years on sidewalls in new DuraPlate dry-van trailers manufactured after Feb. 1.

Bridgestone Firestone North American Tire said it would raise tire prices for trucks and other vehicles by as much as 8% to counter the persistent increases in the cost of petroleum, steel, chemicals for rubber processing, polymers and utilities.

Eaton Wins Hydraulic Contract for Army Vehicle Development • Stonepath Group Opens German Facility • Blue Vector, Intelleflex Release New RFID System • Union Pacific to Run New Hybrid Locomotive in Calif.

David Stone will resign as director of the Transportation Security Administration, the agency said Friday.

USF Corp., which Yellow Roadway Corp. is acquiring, said late Thursday it expects a sharp drop in its first-quarter earnings.