This transmission subject has been beat to death, but I’m so tired of hearing how tunes, big tires, hot rodding etc are the cause of failures. My 2018 2500 4x4 just came home from a 4 week stay at the dealer because of the trans. I bought it new, completely stock, tow a 5200lb trailer every day and at 78k the trans let go. Check engine light came on and within 5 miles to get to a spot to stop i had 1st, 4th and reverse. Towed to the dealer and after they took it apart pretty much every part needed was on back order. Why you ask? Because so many are failing. It took the factory 2 weeks to authorize a complete reman and another week to find and get the trans to the dealer. I was told the problem has been the solenoid pack failing and then taking out the rest of the trans. The service manager told me unless I upgrade the trans that it WILL fail again. So for all the guys that have had good luck with the 68...I’m happy for you! I find it ridiculous that a truck like this has a problem with a light load and even more so that it took Ram 4 weeks to fix it. I’ve been in Dodge/Ram trucks since 1997, this is the last one.