Originally Posted by MCDenny
Well I bought another identical wheel/tire from Walmart and put it on yesterday. Now I have two new matching bias ply ST tires
I was shocked to see what my old "good" tire looked like after I took it off and could easily see everything:
Cheeses, I might not have made it another mile without a blowout!
Lesson learned, trailer tires
need a lot more inspection than car tires
. Checking pressure and a glance at the tread isn't enough.
As I read about many trailer tire failures I wonder if more careful inspection would have caught problems before they blew up on the highway. I'm certain, had I carefully inspected my tires before leaving Alabama last Saturday I would not have left with out new tires
There is not much wear thickness or road distance between bald and belt on most tires.
The tire pictured appears to have been subjected to excessive negative camber.
Check the tread where there is some. If you find more than 5/32nds anywhere or if it is
progressively deeper as you move away from the exposed belt, then your axle
may have been habitually overloaded or it is worn to the point of needing replaced.
If the good part of the tread is worn to less than say...4/32nds then it may be that your axle
has some wear but is OK. A little negative camber wear can be tolerated since any trailer tire should be replaced when the tread wears to 3/32nds anyway.
Most will warrant replacement even sooner. With a little axle
wear you can still get reasonable tire life and replace them when the inside tread reaches 3/32nds.
When this starts to happen too often, then it is time to consider a new axle.
If you use the "Logan's Run" method for tire replacement, then you could base your axle replacement decision on whether the inside tire wear commonly reached 3/32nds before your arbitrary time limit.
BTW I've seen plenty of tires on cars which were at least that bad, and the TPMS is no substitute for tire maintenance.