To all above that provided information. I have weighed my rig several times and I am always under GVWR by at least 2500 to 3500 pounds. Weight of the rig should not be a problem. Tight turns, well I do a tight turn when putting my rig on parking spot at home. That turn is in gravel and then I always, repeat always, back in a straight line for at least the length of my rig before pulling forward at least the length of my rig. I always take the stress off the tires when parking. I seldom back into spots when going to a campground. The slides on my 2009 Montana come out over the wheels so the sunlight very seldom hits the tires and if so a very short time. I am having the suspension checked for alignment at this time. Thank you for your suggestions and help. If I have overlooked something let me know.