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campgrandma's avatar
campgrandma
Explorer
Jun 14, 2014

tire wearing on outside

Not sure if this is the right forum, but thought I would start here. Hubby noticed when we parked our camper at our latest stop that the rear right tire on our 35ft Cougar has worn badly on the outside. We check our tires pretty much every time we stop. We left NC about two weeks ago and are now in Illinois. Any advice on why this tire is wearing?
  • Ok...went to a camper dealer near where we are to find a tire dealer. While there, we told him our problem...agreed it was probably alignment problem. He told us about a product called Correct Track II... which lets you adjust the alignment easier. Anybody ever heard about this? , Nice dealer...Did not try to sell it to us...Just recommended it and said to look into it when we "landed" somewhere.
  • campgrandma wrote:
    Ours sounds like yours, Bull Rider. Right rear tire. Will get hubby to check what he can and go from there. We have had both axles replaced since we got the camper in 08... One from an accident, and can't remember why for the other one. We had to replace leaf spring on that same side about a year ago from hitting a large pothole. Off to find a reputable (hopefully) the dealer.
    Don't waste your time at a dealer. All they can do for an alignment problem is sell you another new axle that may not be straight. Go to a heavy duty truck/trailer alignment shop. They will check everything and straighten it up as needed, all for less than a new axle will cost.

    B.O.
  • Ours sounds like yours, Bull Rider. Right rear tire. Will get hubby to check what he can and go from there. We have had both axles replaced since we got the camper in 08... One from an accident, and can't remember why for the other one. We had to replace leaf spring on that same side about a year ago from hitting a large pothole. Off to find a reputable (hopefully) the dealer.
  • What Barney says...

    We just replaced the suspension on our Cougar 294RLS. Tire on the right rear worn down bald, other three looked great. Our RV is 8 years old. Had a bent axle on the right rear. Don't recall hitting anything, never overloaded.

    The leaf spring on the right side had come unpinned. The bushing were shot, the equalizers were worn out.

    We had all new parts installed, and everything is has a grease zerks for greasing the moving parts.

    Suspension maintenance is a necessary part of owing an RV.

    The worn parts are easier to detect if you take the weight off of the wheels.
  • Wheel bearings going bad can also cause shoulder wear on a tire. You might look for signs that the wheel has heated up (bluing of metal) etc or even jack it off the ground and test for side-to-side play.
  • I would crawl underneath and take a look at the spring hangers, the equalizer hangers and also check for a broken spring or bent axle. You may have hit a pothole or something that either bent or broke one of those items, or they could just be wearing out.

    You would be amazed at the short time it takes to destroy the plastic bushings inside the spring eyes. Take a look at this thread for some eye opening pictures of what they can look like.

    If only one of the tires is wearing unusually, it kind of eliminates an overloading problem. I am not a tire expert but that is what I would do in this case and then I would take it to a good tire shop.
    Good luck.
    Barney