Biggest I've owned was a 1950_Dodge B-2-HHA 2-ton truck. Was originally a Phillips 66 tanker truck. Bought it on ebay for $300. Had an old oak Omaha Standard flatbed on it that was rotted. Got totalled in last May's tornado. I was the 3rd owner and it had all of the papers, tags, manuals, and registrations back to 1958, too!
Biggest I've driven was a 2004 KW conventional cab, 244" WB, 15-speed with a Cummins 630" ci engine. Fun!
Smallest I've owned was a '71 Datsun 1500 pickup.
Smallest I've driven was a little Mitsubishi COE pickup in Saudi Arabia.
Man, are we ever stretching for truck topics here!! Bring back some friendly political dialogue!!!

:p