I have a 2007 tundra that runs very well,.
I perform or have regular maintenance dine regularly o my 4.7 v8 tundra.
I have over 250k miles and I have never touched the tyranny whatsoever.
I want to change fluid and filter, but I must admit that I I'm from the school, if it ain't broke don't fix it.
Just want some opinions on what you might do