It will set you back between 2k and 5k, but a TH400 is what you probably need. Plus a

[admin]

It will set you back between 2k and 5k, but a TH400 is what you probably need.

https://www.youtube.com/watch?v=8hOQyHlkEI4

[admin]

and also, he discusses the th400 into a 5th gen like yours..

https://youtu.be/Jpb5l0PXupg

[admin]

The strongest Trans is a 4L80E, it is an automatic 4 speed, that can take high horsepower

https://www.youtube.com/watch?v=jxHLAQhfn40