creaking noise in front and rear of vehicle at low speeds

I've been dealing with this creaking noise on my Lancer GTS for about 2 years, maybe longer. Every time I take it to the dealer, they say they hear nothing and there are no Recalls or TSB's on this issue. I look on the internet and many people who own these Lancers 2002-now have this issue. The dealer has replaced the sway bar endlink, bushings but nothing helps and they say they fix it and send me on my way and its never fixed. I don't know how they can tell me its fixed when as soon as I pull out of the dealership, the noise is there. There is only one Mitsubishi dealership close to me and I have no choice but to go there and its 40 min one way. Not close at all. They really don't spend much time with it because it is warranty work and the tech really doesn't care either way- no money to be made. My vehicle sounds like a 20 year old car creaking when you turn to park, back up or go over the slightest bump. I have opened a case with Mitsubishi because I'm coming up on 60k and my inservice date. That was no help really. The rep wont even return my calls. I have a feeling I'm going to have to find this solution myself and make the repairs at my own cost. By this time, I don't know if this is worth anymore of my time going back and forth to a dealer that doesn't give a crap because no money is to be made because its warranty. I guarantee you if I was out of warranty, more time, effort and a fixable solution would have been found.