It is quite likely that the tone ring has failed which may be covered under a warranty depending on your trucks vin # . W58 or W68 I believe. Check around the forum for those recalls.
Most tunes can be uninstalled at will with a hand held flash device in a matter if minutes for those dealer trips and reinstalled when you get back home.
Bummer that you didn't get a great eco diesel but I think everyone would be thrilled that you were made whole! Hope you find a great rig and let us know if you end up with an eco diesel!
Since Toyota sold you the deleted truck (illegally) and they are working with RAM the only solution will be to restore the truck to legal condition for you.
Then it will be up to you to keep or sell. The dealers will be under no obligation to get your consent on any repairs. Any reputable RAM...
Yep, the 3 inch lift and 35 inch tires will account for your mileage. A tune will liven up your engine.
I have 10 ply tires and a leveling kit with a tune and I average around 23 to 24.
Very odd that you would have customer service issues with GDE. They are well known for their products and customer service. Following this thread and hopefully you get an easy resolution.
I was one of the last batch of customers to get the original tune from GDE. I went back to purchase the GDE trans tune at a later date and they were not selling any tunes at that time. Since then GDE has developed the tune they currently offer.
I have been running a GDE tune since 2019. It is an older version that is no longer available.
I also have a transmission tune from SKT also bought in 2019. Both have been great since I installed them.
Many run the GDE epa compliant tune. The companies reputation is top notch and if emissions testing is a thing in your area it is a great option. Mr. Tuning @ Eco Owners Canada (EOC) is another option if you are looking for your "off road only" needs. :)
Seems like his post was insightful and he just had a great question regarding his issue. I would think he is more than welcome to share his experiences and frustrations.