Posts: 3508
Location: Elk River, Minnesota | Hiya,
In your pictures it looks like there is inside wear as well...That would be an indicator of low tire pressure...
In most cases outer tire wear will be a bent axle of some sort where the spindle or axle is bent downward. The reality is it does not take much of a bend to cause the uneven tire wear.
If the axle is somehow toed in or toed out, you most likely would get uneven wear going across the tread at an angle and quite possibly cupping of the tread lugs (worn more on one edge of a lug as compared to the other edge, and it repeats on each lug.
Shep has touched on the other things that can cause some really weird issues as well, and any combination of things can really become issues. Had a fishing partner a couple of years ago get a new rig to him and he went through 2 sets of tires in 2 years due to an axle that was toed out...ended up wearing out one tire so badly it was out of round because it would bounce and scrape across the tread to stay in line with the truck...didn't help he traveled at speeds in excess of the tire's rated speed...
Steve |
