Box Size: 76" x 12' Axles: Tandem 7000 lb. (3180 kg.) Brakes: Electric, 4 wheels Suspension: Heavy Duty Slipper GVWR: 6360 kg. (14,000 lbs) Tires: 16" 8 bolt Tarp Kit Sides: 20" Doors: Combo gate (Barn door/ramp) Coupler: 2 5/16" Cylinder: 3 stage, 7 Ton, 108" lift Curb Weight: 1390 kg. (3,064 lbs)