Welcome, hopefully your "knocking" issue is nothing catastrophic. That's proven to be costly out of warranty as @Brady mentioned.
When are you expecting to hear back from the dealer?
Welcome!
Some dealers have great diesel mechanics, others not so much. Hopefully they will find your issue. I'm assuming you're not pulling anything when it's overheating?
I was going to say, would it go down far enough to get the oil out? I used one for my Seadoo years ago because it was such a pain to change! But yes, a nice set of ramps make it a lot easier as you can get more clearance to get under the truck.
Also, I would recommend something like a Ez Drain...
Welcome!
And thanks for bringing us potentially great news.. hopefully that means the legal battle is moving forward and perhaps coming to a close maybe??!?
It states they are still awaiting approval to sell them, but, I doubt if Ram thought it wasn't going to happen they wouldn't build them..