>>500329Not quite twice, but significantly more than a single-axle, yes.
However, if the frame/suspension can't manage that weight, what good is the axle capacity doing for you?
Also, not having weight on the rear wheels means you lose traction off-road. Twice the surface area on the ground means half the pressure on the ground. In sand and snow, that means you stop going forward where a single-axle will apply more pressure on the tires giving them more bite.
With a deck and two sleds/gear over a dually they're not too bad on the snow... much less than that, even with 4x4, it still floats a lot compared to a single.
I've got 5200lb GAWR on my rear axle, which if I were to put that much load on it, would exceed my GVWR. The "tools you'd have in the back of that thing" won't max out a HD single-axle. I've had oilfield tools/parts and full radio cabinets/gear in the bed of my half-tons before and load is a non-issue.
>4.56 related 
