Charlie, hi; not sure if you are still on this, but I just read your post on the H three sunroof tracking system, which I hope is very useful for us. My Hummer is in excellent condition and has very low mileage and my sunroof just started acting up were one side of it doesn’t let it open so we’re guessing it’s that tracking system on the driver side that needs replaced. So I am hoping your post helps me out in finding a part that will work instead of paying for a whole new sunroof to be put in. I was just wondering if you replaced all yours yourself and how long it took. Actually, I think I read somewhere it took you a couple hours and scraped knuckles or something. Lol. I wonder though, if it wouldn’t be easier just to find a wrecked hammer and grab that sunroof out of it?
