Haven't been on in awhile, but needed to do some research. Currently have an 03 Silverado LS, 4x2 Ext Cab running BFGoodrich Radial Long Trail T/A (P235 70/R16), and looking for a beefier tire. I've researched a few tires, but not sure of what might actually fit my truck without getting new rims. The main issue is a truck camper I bought a year or so ago. The camper is approx 1000lbs empty, however the current tires can't hold the weight(the rears look flat). I plan on adding an airbag system to the rear, but would like some advise on the tires themselves. Again, I would like to add tires without new rims, but will look at rims if that's my only other option.