I found this website that I thought might be helpful to some folks.
GMpartsgiant.com. It has exploded views of all the systems on our trucks. I didn't know where to post it so feel free to move it if necessary. Let me know what ya think!
I bought my 2006 LLY cc sb from my aunt two weeks ago, and there are a few things i dont need and would like to get rid of. first off is the reese 5th wheel hitch. Its an expensive hitch $1400 new, but i didnt pay for it, so make an offer. I am also wanting to sell the running boards...