Load distribution

Well slide your fifth wheel back a little will take care of the steer problem. What do you mean when you say it varies between 48' and 53'?

 

If you have a 48' measure from front of trailer to rear axle. Then add a foot towards the back, and that's usually close to middle of load spot, so 25' from front of trl would be where I would center load. If you have a 53' with a 5' rear overhang, then 25' from front of trl, 53' with a 8' rear overhang would be 23.5' from front approximately.

 

Measure from your kingpin to the center of the rear axles and development de by two. I wouldn't worry that much about the steer, 12,300 no one should bother you and even at 13,000 most places will let you go. I'm heavy in my steer empty and I never have been hassled for it, but I don't run all over the country anymore.

 

Did you know the weights of the pieces before they were loaded?

 

Going to clarify JD's comment.

Find the center of the trailer axles...spread or tandem. Mark. Measure from that mark to the kingpin. The halfway point of the measurement is the center. Mark.

Be sure to take your empty weight, full of fuel. You'll notice that the drives are normally 6000lbs heavier than the trailer weights. Adjust your load accordingly (most go 1 ft rear of the center mark.)

 

Yeah I should have thought about clarifying the center of the rear axles thing thanks six.