Truck and trailer near max load, still need more gear...

keymastr wrote:
Try disabling the trailer brakes and seeing how well it stops. I would be far more concerned about braking and handling than Axle ratings. If your truck controls the load well then no worries.

I have no experience with Canadian enforcement so no comment on legalities.

Exactly. Canada does things different. If I am under on my tires, under on the axle and suspension, and it stops well, does not matter what the sticker says. Here. CA, or some provinces, may well be different.