I'd say you got your money's worth out of that warranty. And you did this with no threats of bodily injury?

Just needed a cam and lifters and you got a new engine instead... AWESOME!

I bought one in tuscon with a completely flat lobe and drove it here (almost 2000 miles) and the bearings and such looked like new. I have torn apart a bunch with bad lobes (caused by bad lifter rollers) and never seen anything happen to the bearings even with 300,000 miles and a couple bad lobes. The guys at the local dealer always find "metal on the solenoid". They don't like putting cams in because an engine job is much better paying for the amount of work.

I seem to remember you bought this new and went with a 5.7 instead of 6.4 because no MDS correct? With that warranty if they are willing to throw in a whole motor then awesome.

Good.

340,000 chassis miles

Engine and auto trans much younger.

what other truck components should be “renewed” to reduce on road break downs and headaches?

It is hard for me to imagine the
driver’s seat cushions
are protecting your spinal discs like one would hope for

are the body to chassis vibration isolators uncracked?

My fantastically bad luck may be changing the right way for a change (better knock on wood) LOL. The Columbia CDJR dealership in Tennessee where I dropped the truck off took a look at it and found a stuck exhaust valve and a bunch of metal shavings under the intake, so they ordered a new engine and said it would be ready on July 1st, but I held out little hope. I had to transport a 69 Dart GTS convertible to Hames Restoration in Mississippi so I headed down that way with my heavy duty open trailer. Just as I was dropping the car off I got the call, the truck was ready! So I headed over to Columbia, spent the night at a local motel (they really need more of them in that area) and got the truck in the morning. Took it for a short drive, everything seemed to be good, even the A/C was cold, so I loaded up and headed home and to my amazement the only traffic issue was just north of Nashville, no slowdown in Nashville for the first time ever! Did spend an hour and a half stopped dead on I-65 for an idiot who lost control of his open trailer and rolled the truck. Six ambulances and 10 cop cars later, they finally loaded everything up except the trailer which was still in a ball in the ditch on the side of the road. 340,000 miles on my chassis, 60K on the trans, and a brand new 5.7 hemi, thank you lifetime powertrain warranty, only $200 deductible for both!

I put one of those egg cushions on the seat 100,000 miles ago, and a vibrating backrest, I am old ya know?!? Don't even know what the "vibration isolators" are, rides like a buckboard from day one, so nothing I can feel has changed. Had front end components changed, all fluids changed recently, brakes are a year old, muffler has been rusted out for 3 years now, so maybe replace that soon. Tires are done, I have another set ready to put on. Who knows what will go next... My dealership recently got the exact same truck delivered, $51K and a 6.4 is all you can get now in a 2500, so no new one for me!

Nothing in the world wrong with a 6.4, I swapped one in my 2011 when the 5.7 blowed up and it is a beast and gets better MPG because it don't down shift anywhere near as much as the 5.7 did when towing witch is about the only time I drive it.

Did Ram previously recommend premium with truck 6.4s? They don’t now. I just rechecked my manual and it says 87. Only the hipo 6.4 L in Challengers, Chargers, TRX and Grand Waggoner requires premium.
I average around 16 and change. On highway trips I’ve been surprised to see the trip fuel economy readout reading 20-22 mpg. Doing the math in my head at the pump I think the readout might be a bit optimistic and the mpg is probably closer to 19 highway.
With great difficulty me and a friend managed to free our late friend Don’s trailer out of his backyard last weekend, and then towed it 35 miles from the south burbs to the storage place. I didn’t reset the trip mpg feature so I can’t say what it will do towing, that is extent of my towing so far so can’t report on real world towing mpg. I’m guessing 9-10.
I’ve seen guys on forums recommending using mid grade when towing, but given the fact 75% of what you read on forums is just guys stroking themselves, I don’t know if there is any merit to that recommendation or not.