I have a 2007 2500 LTZ Suburban which is rare. The LTZ part. It is a great vehicle. Tows well and is rated for 9600 lbs. Has the 6.0 which has plenty of power.
Just realize and I went from a 2008 Dodge MegaCab Cummins, that a gas engine when towing your trailer up any large hill will be tacking 3500+ rpm's. it's not a big deal, these engines are made for it. It just sucks the gas while doing it.
The 5.3 Burb is a very good vehicle also and with the new 6 speed selectable tranny is a very good tow vehicle.
I would go with a 2500 if you can however, because it has better gearing and its all about the gearing.
I seriously considered an Expediation and only bought this Burb cause it was the best deal I found. The expiedition has better tow ratings or it did when I was looking for a half ton vehicle.
