Hey Jizz what motor you got in that Avalanche? From the sounds of it you don't have that anemic 5.3L. I was sad the day they killed the 5.7L for trucks. Also how do you like the Avalanche? I've been looking into getting a full four door GM truck to replace my three door 98 silverado. So I was lookin at used ones. I can't afford the new four doors or a new Avalanche.