About 3,000 United Auto Workers at Mack Trucks donated 6,000 hours last week to build seven chassis for New York City police and firefighters. The donated chassis were built at plants along the East Coast. Five of the chassis will go to the city's fire department, and the two others will go to police.

Workers clocked in before dawn to put in the extra hours, worth about $120,000. Specialized companies outside Mack will convert the donated chassis into fire trucks and police emergency vehicles. The date when the city will take possession of the trucks is not yet known.

Immediately following the Sept. 11 attack, Mack loaned the city six new trucks to replace those lost in the rubble.