Are you talking pick-up,
or the Tow-truck/Dump-truck/Flat-bed sized units?
Those were more than one ton or bigger, were they not?
Those would be even bigger studs yet.

I thought the 70's pick-up trucks were all
D or W 100
D or W 200
D or W 300

I've got a 78, but it says 150 on it.
It's Prospector/Adventurer in a half ton.


I'm pretty sure this is simply the heavy 3/4 ton.
The smaller version was simply a light 3/4.
Both D-200 designation.
Am I wrong in this assumption?