Just wanted to introduce myself and say that this is a great site. I've been lookin' in here for months and finally decided to register and post something. My name is Chad and I have a 01' Sierra stepside rc w/ a 4.8 l . A few mods done but hopefully more in the near future. I have read tons of good info here and everyone seems to be really helpful and maybe I can add something here and there. Again, great site !