I got my truck back yesterday, 2 weeks to the day of the K1 failure. I loaded up the almost max payload cabover camper, which I was hauling when the failure occurred and sat in the dealership lot while waiting for the repair, and made the 6 hour trip back home. The dealership is in Fort Bragg, CA and the first leg was 35 miles of steep, winding coastal mountain road. That was a heckuva test drive and other than the trans temp running a little higher than what I'm used to (179 at the peak), the transmission performed well. The rest of the trip was through triple digit heat and was uneventful.
I had a chance to talk with the tech and he showed me the snap ring and K1 clutch pack. His thought was that the snap ring was less about correct sizing and more about not being fully seated. The slight twist in the ring supported that theory and he said he checked the K2 assembly and found that snap ring to be not fully set in its groove. A little tap with a drift punch clicked it right in. I know this goes against a lot of what we're being told, but those were his observations. Perhaps a robotic assembly glitch? The clutches were in excellent shape with no abnormal wear or burning. He said it was good that I was able to get the truck off the road and shut down immediately before things had a chance to "free-wheel" in the transmission and cause a bunch of damage. He also advised not to mess around with checking to see if reverse or other forward gears were operable unless you need to do so to get safely off of the road. Although he did not drop the pan or filter, he performed the repair according to the TSB and found no indication or suspicion of particle contamination, and having seen the clutch pack myself I'm satisfied with that.
Although having this avoidable failure was a PIA and a black eye to RAM products I'll not forget, the dealership went far and above my expectations. The owner, who apparently I went to high school with (he's a couple of years older and I didn't know him then), the service manager, parts lady, and service tech were truly nice people and did everything they could to get my truck repaired and back on the road. Even the sales guys were rooting for me. There was not one time my fairly well-tuned bullsh!t detector went off. The parts manager even put me on her grid heater relay list and will get one to me if I need it when it comes in. Heck, they even let me sleep overnight in the camper so I didn't have to pay for a hotel room in a tourist town on 4th of July Thursday. That's about the best dealership/shop experience anyone could ask for and I look forward to doing their review.
We'll see if it passes the test of time, but I'm hoping there will be no further issues with this great transmission.