We've been noticing rapid and excessive wear on the outer groove of both tires, especially the passenger side tire. The wear really accelerated during out last two Road Trips which covered less than 2000 miles between both of them.
Well, practically the minute we used the level and tape measure, we learned the axle was canted out of alignment. Luckily, our neighbor knew of an outfit here that can realign axles. We scurried over there last on a Friday afternoon. The guys there knew immediately what the problem was as soon as I described my measurements and the tread wear. They both did a bobble head belly laugh when I told then it was a 29-year-old trailer. Then they rattled off what it would need and said the cost would be somewhere between $75 and $150. We agreed to drop off the trailer Monday after lunch.
Of course, we're now going to have to buy two new tires, too. We figure the whole job will probably cost out around $400. But it's surer worth it for the peace of mind that comes with knowing we probably just avoided an inevitable blowout somewhere down the road.
When you start getting into red zone tread depth on the outside of a tire, it's time to pay attention or pay the price!