2016 Ram 3500 SRW Laramie.
Truck weight full of fuel:
Steer axle 5100
Drive axle 3200
With Bigfoot full of water and nothing else:
Steer axle 5500
Drive axle 6680
Loaded heavy for 2 weeks, heavy clothes, full of water:
Steer axle 5540
Drive axle 7120
Oh ****. RAWR is 7,000 and payload is 4018.
I drained water down to 1/3 tank and rescaled.
Steer axle 5520
Drive axle 7,000
I'm still over payload by 102# and GVWR by 220#.
It drives good. I added a Bigwig and really couldn't tell a lot of difference.
More attention needed regarding what I pack.
Edit add...rubber bed mat and 5/8" plywood under the mat.