I guess all the hassle and worry you guys are having is the plus of having a salvage title warranty void 8 :p:. But i already had to replace my own engine from my own fault.. however i got to have my way with my new engine and add my own preferences to it before dropping it in.

no Im too lazy to do it myself. I let dealer to do it for me. and they check everything else for free.
I do do my own oil change on my Jeep because its a POS, and its high enough for me to get under.

Bump for newbs.

I have an 05 with 30k miles when should i expect problems

Some people have gone to 100k on an original motor without issue. A lot of it depends on what conditions your car is driven in and how well it is maintained. There is no answer to your question, my first engine lasted 22,000 miles and my second lasted 74,000 miles and both were maintained perfectly. My current engine has 30,000 miles on it.