HI am am looking into getting the ECO tune and was wondering what the difference was from the ECO tune and the ECO tranny tune ?
I have a 2005 Jeep liberty crd with 240k + miles . A few weeks ago I started to get tc shudder. I put Dr. Tranny Instant Shudder Fix in and it is working right now. I was wondering if the engine tune would help my tc to last longer,and if the shift points for 4th and 5th gear lock up could change to higher speeds . Right now it locks up in 4th at 50 and 5 at 62.

thanks