Most 1/2-T pickups are really cars with a large trunk. A "real" truck needs more low-end torque (think diesel), a different transmission/differential combo, and a stiffer, bulkier chassis and suspension. Think F350...
Don't get me wrong, loved my Silverado 1/2-T, but it really didn't have much capacity for carrying heavy stuff, and was too perty to be a work truck... :-P
Have Funds, Will Retire
...not doing anything of true substance...