don,t know if it will help at all, but most commecial trucks with trailers run between 29,000 and 38,000 lbs. empty.
my KW T-600 with 53' box is about 34,800 with fuel. most trucks run about 17,000 to 22,000with a average of about 18,500 for the tractor. a steel stepdeck should be in the...