Welcome to Sheldon Trucks, Inc. Home of the Big Dog    Formerly Vermont Mack, Inc. The only authorized parts distributor, service/repair shop, and new truck dealer for Mack, Volvo, and UD Trucks located in Vermont. 137 Aveunue A Williston, VT 05495 (802) 658-3314 View Map Visit our manufacturer's websites: Mack Trucks Volvo Trucks UD Trucks