Hmm, I sold my '83 pickup to my roommate who occasionally gets a load of gravel for the driveway. He loads it up to about 1200 lbs and it doesn't squat to badly and drives OK. So, 1\2 ton is about right, based on what we see here.

Paved Roads ~ Another example of wasteful government spending.
'85 $runner, lifted and locked.
See the Ding_yota here