Again, manufactures ratings are warrant ratings only. They are not enforced by LEO's or CVEO's.
The engineered point load capacity of the road is enforced, IE Federal Bridge Laws.
ANY and ALL LEO's that have posted on this site, have stated, they do not enforce manufactures ratings. They do state, as have i, they WILL get people that are unsafe off the road. Weight will not be the issue.
I and many others, have also stated, going over a rating may not be smart or safe. It is legal!
I generally speaking do not go over axle weight ratings. Manufactured gvwr, I don't follow those, nor do I follow gcwr. Had a few too many rigs under gcwr stall out and blow up transmissions, below rating, on what turns out to be a lower % grade than mentioned in tow rating that I can pull. IE be specs a max 12%. I can name multiple roads here in greater Puget Sound basin with grades to 25%. Backing down one of those is not fun. I don't trust GCWRs to be correct for how I use a truck. I would suggest no one trust a giver to get you everywhere you want to go.
Choose your poison as to what rig you have, even if you follow manufactures numbers, it may not be enough truck! Per say. Been there done that.