what does "1 TON" on rear pickup mean?

[boi_si]

i seen couple old pickups that says 1 ton on the rear. i was wodering if that is the weigh of the vehicle or is the weigh it can carry. ??

its more rare then the others but is it alittle special then the standard models?

[Rycam]

From what I understand, the rating (USAC?) is based on how much payload the truck can handle. Manufacturers use heavier duty springs, larger brakes, better cooling systems and the like to be able to support higher rated loads. These standards also deal with stability with the load in the truck bed in turns.

American trucks commonly use six lug wheels for 1/2 pickups and eight lug for 3/4 ton. The bigger the load capacity means a crappier ride if the bed is empty.

[greasyjeep]

basically means it is one BMF of a rear
a ff 14 bolt GM
a 10.5" Stearling
Dana 70/80
Dana 60 fronts
just really big rear - 2 1/1 ton and rockwells are the only things bigger you can get under a standard jeep/truck easily.