Originally Posted by Neanderthal
Can anyone shed some light on this? I have a 2014 390 60 RB. Fully loaded I am 11,600 front and 18,400 rear. I can not fiid the spec's for my weight with 275 22.5 tires and the 3000 Allison. My toad would add another 3800 lbs. I understand the tire pressure setting. I am trying to figure if I am overweight.
You MAY be over on the front axle unless they installed the heavier airbags. With proper tires and proper airbags, I think the front axle gross is 12K lbs, otherwise 10.5K lbs.
A couple of years ago, FR built quite a few 390RB 40's that had to be retro-fitted at the factory for bigger tires and airbags. I had one of those and had to go to Elk.
Worth checking to be sure.