I just destroyed my 140,000 mile OEM 68RFE transmission in my 2012 Ram 3500 DWT with the 6.7 Cummins.

This truck is used to pull 20K-34K via gooseneck and Pintle hitch between KC & The Colorado mountains.
Our CO property is at 8500’, and I pull 7% grades for up to 8 miles in the mountains.

My truck currently has a H&S Mini Maxx, 5” exhaust, studded heads, billet flex plate, & EGR & other deletes.

I am wanting to install a Revmax 550 with the upgraded billet shaft.

I know that H&S is defunct but does anyone know how to add the transmission tune?

Is it an acceptable option?

I only use the mild (second) level on the mini maxx and have never had any issues with it.

Thanks in advance!