Specifications include, but are not limited to: 2018 or 2019 Chevrolet 3500 or GMC Savana Extended passenger van with 155 inch wheelbase. 2018 or 2019 Ford Transit Low Roof extended window passenger van with 148 inch wheelbase. or approved equal which meets the following Buy America requirements: GVW - 9000 lbs. minimum with full 14 or 15-passenger vinyl or leather seating Engine - V-8 or V-6; 235 hp minimum Alternator - 145-amp minimum Battery - heavy-duty - 600 amp minimum Rear Axle ratio - Standard manufacturers rear axle ratio Mirrors - low mount 8 inches x 5 inches approximately and power adjusted Steering - power Transmission - 5 or 6-speed automatic Tires - 5 manufacturers standard for GVWR, all season radials with mounted full size spare tire and wheel and not Firestone.