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

JRscooby wrote:

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)

What was thought behind 12K fronts and 46 rears? It would seem that you would over on the fronts before you got to take advantage of the 46 rears? I am not sure I have seen that combo before.