The Diesel Place? Found it a week or so ago, kinda like the CK5 for the Duramax. Just wanted to pass it onimp: http://dieselplace.com/forum/index.php Here is the link
Have been for a couple years now, though i dont post much. They have a pretty good 6.5 forum, i avoid the D-max forums.
I am a member, and visit the site with regularity. I've learned a lot about diesels and saved a good amount of money by getting 'how to' information on everything from basis services to installing and EGT and boost guage. If I need a good laugh, I'll read through some of the OFF-TOPIC posts. Steve
I go there every couple of days. A good rule in life is: take everything thing you read with a healthy dose of skepticism and you'll sort out the true. The internet is full of people who don't know what they're talking about. towrig and dieselplace are no exception to that rule.
Thats ware I hang out now. go info for the D-max when you start having the fuel system and wheel baring trouble.