Are you going to tow more than 6,000 pounds?
Are you going to load the inside with more than 1250lbs?
Do you plan to sled pull with this thing?
If you answered yes to any of them, buy a 2500. If your answers were all no, then buy a 1500.
Bigger rear axle, bigger brakes, bigger trans, blah blah blah.......
GM designed the 1500's drivetrain and brakes to work great with the weight of a burb, plus a little more. A 10b rear will be just fine, a 4L60E WILL be just fine. The 5.3 WILL have plenty of pep for you.
You can thank me later, when you put brakes, tires, registration, gas, and insurance on your 1500 and it costs you considerably less.
