Soooo, I am looking for a Titan to buy....What do I need to look for?

[Sticka]

Hi everyone,
Long time lurker, first time poster.
I am looking to buy a LE CC Titan. (if you are selling, pm me.)
I am looking at 04, 05 & possibly 06 if the price is right.

I am trying to find out what to look for when buying as far as reliability/warranty issues.
I have read a few threads on the brakes and diffs on the 04-05.
Are these the 2 main concerns?

I will be using it to tow a travel trailer across country.
Was there ever a recall on the diffs?
Is the diff whine a common thing or is it just a few isolated cases?

Thanks for the help.

[Sticka]

Jeez you guys.....don't all rush me with info all at once!!

[08TitanSE]

There are tons and tons of posts on this. Run a search, and you will find more than enough information on recalls, problems, ect.