Ford 6.7L 1050 ft lbs TQ at 1,600 rpm, 475 HP at 2,800 rpm

ksss wrote:

RoyJ wrote:
A better comparison would be tow truck's total GAWRs vs total towing weight.

A tractor typically have 44k rears with 13k fronts. That's 57k for 80k combined weight.

A dually has 10k rears and 6k fronts, at best. That's 16k for 40k+ combined.

So the semi tractor has a much better running gear toughness to GCW ratio.

Most trucks are 12K fronts with 40K rears.

Note Roy J is in Canada.
Most class 8 tractors do run 12+40. But a 12K front would be called too light for the operators of most class 8 trucks. (My last 3 trucks, 20 front, 20 lift, and 46 rears. My last tractor, 12 front, 46 rears)