i have an 05 , and the issue I am having is the tranny shifts rough a little, drives great in town, but when you get up to highway speeds she will not shift out of last gear. When I bought his vehicle guy said it was shifting hard, but when we checked for fluid there was hardly any in it. So the question is do i need to just chznge the valve body because thats what i read and foufn out or overhaul the tranny only and if so what websites to find one . thank you inadvance

 

First step would be to check the fluid level, then i would change the fluid and filter. Depending on the mileage you could do a valve body rebuild like i did which would be better than just swapping the valve body for an unknown one.
A few posts on here so worth doing a search.

 

The mileage on the vehicle is 200k, mileage on tranny is unknown, will do those things and get back. thank you

 

Make sure to follow the right procedure for fluid level check. Look it up, but basically you have to bring the fluid to a certain temperature range, then add until it's coming out of the fill hole. Atlantic British has a decent video on it.