I don't know about towing capacities, but if you are thinking of purchasing this truck, you really need to inspect it carefully. Every GM truck I've owned has been notorious for rust. Seeing this truck is in Florida, I wonder if it has been exposed to sea-salt.
The truck look like it's been freshly painted. If it has been, then under that paint, especially around the doors, is a rusted out hunk of metal about to fall apart. Once rust forms INSIDE those doors, it cannot be stopped by simply sanding the outside of the door and applying a new coat of paint. If so, the rust will pop through that new paint in less than a year.
I see too many signs of underlying rust trying to pop through already.
My previous 3500 diesel dually (Silverado) had rust forming on the bottom of the doors. I desperately wanted it sanded out and repainted. The body shop I went to refused to do it. (They were 100% honest with me, and I'm glad they were).
They said, they would not do the work, because the rust (inside the doors) and inside the walls of the bed, and the tail gait was the problem. Not the outside rust. If repainted, within a year the doors would be completely gone. It was better to leave them alone. All that sanding to fix and applying Bondo would simply cause those spots to crumble and it would look worse than in the beginning in a very short while. They refused to do the job because they were concerned they could not guarantee the work and people are just too sue happy.
I trust this repair shop because they have been a family run shop for over 60 years, and are VERY good at what they do. I grew up with them in my memory from the day I was born.
I ended up trading that truck for a new one. At the dealer lot, I went back and found my old truck a few days later (just curious). The price tag as $10,000 more than what they gave me for trade, but they also did a quick and dirty repaint to make it look good. All I could do was shake my head and be thankful I traded.
I'm just saying, that truck looks like a new paint job, and that paint is hiding the rust!
