I've been having an issue with irregular tire wear and mild steering wheel shake. The right steer is wearing on the inside shoulder in a few random places after only 20k miles. The shaking isn't dependant on speed and the issue isn't balancing (I run Centramatics and Tru-balance wheel centering sleeves) and it is somewhat intermittent. It seems that it's worse when I begin driving and then after a half hour or so it diminishes, although sometimes it sporadically returns. Also, when the steering wheel shakes, it seems to vibrate the right fender / hood area as I can see the hood mounted mirror shake when it's at its worst. Alignment was done at a competent shop and then checked and validated by another reputable place a few thousand miles later. The problem isn't shocks, as I run Road King shocks on all three axles. The truck has 910k miles and is on all original parts. I had thought that it might be kingpins, but the local Cummins dealer checked and said they thought everything looked okay. Anyone wanna take a wild guess on this? Could it be bearings? Steering components are one of my weakest areas as far as mechanical issues go, so any advice is welcome. I do know that with 910k miles on all original parts that everything could be on the verge of going out. Anybody competent enough to do the work is welcome to come stay in our guest room and do the work for $30 / hour cash and I'll supply the parts, beer, food and go-fer help, and we can rebuild the whole front end. Oh, and if you like to hunt, our county is known as some of the best deer hunting anywhere. See pic of my back property below ======>