IDK about Canada but here in AZ, probably the whole USofA,
a single axle without brakes has a limit of 3,000# GVW. Recently, I got a "Home Made" trailer registered and licensed. They asked me what its GVW was, I said 3,000#. They walked around it, stuck a vin label on the tongue and gave me a permanent plate
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My C1500 doesn't have a problem pulling or braking with it but, I wouldn't go any heavier for sure.
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Some day I may even paint it