Forum Discussion

wowens79's avatar
wowens79
Explorer III
Jul 26, 2017

Truck Stops Truck / Trailer Stops Trailer?

I didn't want to get off topic on the debate about the guy pulling the 5ver with a 1500, but the truck brakes being adequate was brought up, and I wanted to get some thought on this.

Lets say there is 1500lb of pin weight as a nice round number. That 1500lbs is on the rear axle of the truck, so the trailer tires don't have that weight on them, so they would have less traction, but that 1500lb would be on the truck, so that would give the truck additional weight/traction to stop. In this case in an emergency stop situation isn't it possible that the light duty truck may not have enough breaking power to get the maximum breaking affect??

Under normal conditions I'd think the trailer/truck brakes would work together fine, but in an emergency would you get maximum braking??

Also the bigger brakes on an HD truck would dissipate heat better, and would not fade from heat.

12 Replies

  • if the brakes lock up or go into anti lock mode, you are getting the full braking. The additional weight on the axle is actually additional weight on the force of the tire as it touches the ground. I was taught this in Accident Reconstruction school...more weight equals more downward force. So as long as it does not prevent the wheel from locking up or going into ABS mode, it will all equal out
  • Ron3rd's avatar
    Ron3rd
    Explorer III
    Yes, the HD truck would have a better chance in the scenario you describe.