I went lookin for a Z71 crewcab today and came back with an Avalanche. I didnt even think I was going to buy until I came across this deal. '04 Z66 Avalanche w/5.3L, 3.73 gears and 43k miles for 21k. I took the intake off my truck and put in on the Ave and already leaned out the AFR and taken out TM. Gotta wait till I run this tank down and 93 octane goes in and the tuning begins! This thing also kicks the hell out of my truck for gas mileage! I'll try and get some pics up tomorrow night or Friday.