Valve body replace, easy?

[spannerrash]

I have scanned through quite a few different forms and it does seem a common opinion that the MAF sensor will inpact shift quality and timing. As I said in my first post, I don't have any transmission issues but I do believe in preventative maintenance. The transmission is by far one of the most expensive things that can go wrong and so justifies some preventative expense. I do more research and will let you know where I go with this.

Just as a side note, I also plan to change the timing chains and adjusters next spring. Also a preventative measure.