Amazing experience!!! Nitto Tire invited me to make content in California at the King of the Hammers desert racing event! Part 1 includes traveling and my first day at the event.
6.4s can be tricky. They aren’t as well known as the 6.0, but still have a lot of problems. I would say do whatever you can to baby it and sell it while it’s running in my personal opinion. As a general rule for me though, deleting it should give you better fuel mileage and longevity if driven carefully. I made some mistakes with my first 6.7 and had to replace the engine out of pocket. The 6.7s still proving to be more reliable though. Especially 2013+