Wheel/axle problem - Tire stripping on passenger rear axle

[Magard]

Does the truck drive straight or does it pull hard one way or the other. If tandems are mis aligned they will fight the front end trying to go find a happy place. Tires wearing like that should be like driving a battle wagon if it's a alignment problem. Brakes would be on fire wearing a tire off that fast. Check suspension for sure also as Waterloo is saying. Don't know how many miles or abuse but look under the axle wear the spindle welds too the housing make sure no cracks. There should be oil weeping if it's cracked. I have seen that on high mileage abused quarry trucks. These roads today who knows.