That is a lot of d/w to put up that high.
As far as the bales go, a flatbed one ton truck with 7 x 12 bed would have to be loaded about 12 feet above the deck. not so impossible, I don't think, and even though I'm sure they felt like 200 lbs, they were probably more like 100 which is a pretty heavy bale and would have loaded the truck to about 5 tons which happens all the time.
I put a bucketload of pit run in the back of my 3/4 ton Dodge that didn't fill the bed halfway and it was 4100 lbs at the scale.
The baler that we used would consistantly put out a 175lb bale with variations up to about 215 and down to 150 or so---they were very heavy bales. Also, for some reason, this field's bales looked and felt bigger than normal. I wil concede that I did not weigh each bale and as it was the end of the season, my calibrated elbows may have needed adjustment, but the 108 bale figure is fact. For compromises sake, lets call the bales 175 as that was normal for the baler. Moving on.
your 75 was not overloaded in the same sense that the OP's LC was overloaded with 2000lbs ON THE ROOF. if it weren't for the picture, i'd call bullsh!t because it would be otherwise as unbelievable (literally and figuratively) as the idiot who claimed he hauled 20,000lbs (100+ bales of hay) in the back of his pickup truck. that much weight would bend the frame.
You must be some kind of automotive engineer. Do you have any hard data to back up your claims? Do you know what the tensile strength of the steel in the frame is? Do you know how much weight the springs were supporting versus how much the bumpstops were supporting? Give it up already. You do not know everything and your name calling and unfounded assertions detract from the forum.
If you have any real world experience to share then do so; if not, quit clogging up this thread with your drivel.
For the record, I agree with Bloo.