Shifting maybe mds problem need help!!

[kyle lussier]

i own a 2013 ram 1500 5.7l. I am having a issue where the truck at crusing speed shifts in to a high gear and doesn’t get out till pedal is pressed almost half way down I tried shifting it to the 6th gear to turn off the eco didn’t work.

 

[RLJ10X]

What transmission, what rear end gears?

Do you have the "Slap Stick"?