My travel trailer has Dexter tandem axles. I noticed both tires on the front axle have slight cupping on the outside of the tires.
My fresh water tank is just behind that front axle and over the rear axle.
My question is could having more weight on the rear axle and less on the front axle be causing this?
I don't travel with a full tank but I do have 1/3 - 2/3 filled sometimes since I only boondock.
Everything on or around the axle looks fine otherwise.