These uprated half-tons are rated for about all they can handle.
On paper it looks like 3/4 tons aren't that much better, but the truth is they're a LOT stouter and can handle a lot more than the so-called ratings say.
They aren't rated by the engineering dept., the ratings are based on taxable licensing numbers.
You can find Dana 80 rear axles under 3/4 ton pickups. Dana rates that axle at 11,000 pounds. Its the same one Ford used to put under the F450.
If you look at the actual components instead of brochure "ratings", you'll see how wimpy half ton, non-floating axle rear ends with one small bearing at each end, riding directly on the axle shaft, are and how strong full-floating axles with two large bearings at each end and a hub to take the load instead of putting it right onto the axle shaft are.
I've broken half-ton axle shafts using them for heavy work.
They're car axles. Not truck axles.
You buy a half ton when you want a nice daily driver that can carry a dirtbike or an occasional appliance or a few sack of mulch.
You buy a 3/4 ton or 1-ton if you intend to carry or tow heavy.
