I have a 2009 Polaris 550 XP Sportsman. I believe my initial ride was good but ever since the rear suspension has an awful squeak. I have talked with my local Polaris dealer and he never heard of the problem. Didn’t offer any solutions. Went to Spider Lake in Minnesota over the week-end and the squeak was worse than before. Are any of you other XP owners suffering with the same problem? If you have corrected the flaw what did you do?