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Old 07-14-2012, 01:14 PM   #127
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Photo seems to indicate under-inflation and out-of-balance conditions. Also, were Toyo's radials, or bias ply tires?

If you still have the old tire(s), I'd take them to a tire shop; and they can give you a better idea if an alignment is indicated. Alternately, they may be better able to evaluate the photo; if tires are no longer available.

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Old 07-15-2012, 10:01 AM   #128
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It was Costco who did the switch, and both one of their techs and the manager who looked them over with me. They, too, wondered about inflation (50 lbs) but then hadn't a clue about why they would all be worn on the outside edge -- the "toe-in" -- except the possibility about the axles (the slight upward bow on each); alignment was never mentioned. Oh, they were radials. I no longer have the tires - their disposal was part of the cost - but took pictures of each and we went over them all. The picture in the earlier post shows the worst tire.

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Old 07-15-2012, 12:27 PM   #129
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If you suspect wheel alignment problems, axles are adjusted by bending them. Airstream has a recommended list of alignment shops that can do this, as implied in a post by "Inland Andy":
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Old 07-18-2012, 01:59 PM   #130
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Originally Posted by OilnH2o View Post

I also have a pic of just one of the old tires - severe wear on the outside edge - and found both axles have a slight bow in them, almost as if they had been used as jacking points in the past (and maybe are thus putting a "toe-in" on the tires? All were worn similarly). I think that's the next project!
That picture looks like the camber is not correct.

A toe in would also have a feathered edge at the worn areas. It may have and the pic is not that detailed.

Under inflation should show wear at both outer edges of the tire.

Out of balance (and to a lesser extent bad shocks) would show up as a cupping. It could be anywhere on the tire even the place where that wear shows up. And the worn areas would not be even around the circumference.

All Airstream axles have a bend in the axle when they were made. Just because the axle tube has a bend in it does not mean the bend is causing that issue.


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