Dec 02, 2019 · They have a rigid frame and conventional steering with the drive at the rear wheel. As of late 2013, thePerfectst ever production haul truck is the 450 metric ton BelAZ 75710, followed by the Liebherr T 282B, the Bucyrus MT6300AC, and the Caterpillar 797F, which each have payload capacities of up to 400 short tons.