i got the truck a year and a half ago and the transmission is going out for the second time now first time i was lucky enough to have warranty cover it now not so much i am wanting to up grande since i need on any ways so my question is what is the best transmission i can. get going to put 14 inch lift and 40 inch tires here soon so want it to be able to handle it right now mostly stock

 

The best transmission you can get is have a performance shop do a heavy duty rebuild to yours. With that lift and those tires you will need to regear the diffs and get a programmer with custom tunes too.