New to owning a camper. My wife and I grew up camping and recently purchased a 2012 crossroads zinger.. we are both very happy with the product, except for the rear axel and rear passenger side tire is very worn. I pulled wheel off and replaced bearings thinking they were bad. Towed it up to campground and even before we could make it to the highway somebody flagged us down and said rear axel looked horrible.. called dealership and we are beginning to get the run around with them and we haven't owned it 30 days yet and this weekend is going to be our first weekend in it. Any help or comments appreciated