What is the pulling power difference between a fixed up Dodge Cummins and a Big rig?

Dodge dually can pull about 20 to 30,000 pounds for 300 feet. Big rig semi can pull over 100,000 pounds until the tanks run dry......... and at 65-70 miles per hour........ and maintain 190 degrees of coolant temperature. that 20 - 30,000 is an average freight haul for an OTR driver.