First off, this (.) is a period. It's function is to separate sentences. It is your friend.
Secondly, what pluke was referring to is a recall that should take care of your gas puking issue. Lots of JKs had that issue when filling up.
As for the squeaking sound, it could be brakes. But you said it started at about 10000 miles and still does it now with 35000 miles? Does it only do it when applying the brakes, or is it constant?