armor lite aluminum end dump trailer for sale at midco sales. this aluminum end dump measures 39 feet long with 54 inch high sides. it has a smooth-sided wall and rounded nose. the gate features an air-operated latch and a coal door. the tub of this end dump trailer is lined with a quicksilver liner and covered with a manual tarp system. this is a tandem axle trailer with air ride suspension 11r22.5 tires and all aluminum wheels.