Hello everybody. I have a 1999 Burb that I use for towing a travel trailer. I recentlyt put Air Ride air bags under the rear to help with sag. i have just put 17inch 2004 Cadilac Wheels whith 265 70 R17 tires. Looks good I think. Some things i want to do in the future; ..Add a Hyper chip for more towing power. ..Add some sort of KN air filter system. ..Add headers, mufflers, and do some thing about Cataylic converters. Looking for good ideas and tech info here.