As I moved along with the smart tire install I removed the drive wheels.

With their removal several studs broke off on the starboard hub, 5 to be exact, now that was scary.

This is an area of the bus that many don't think about and whose failure can be disastrous.

I will change them all. They are just as important as tires and I believe they should be given a "time in service interval" and maybe they have one and I don't know about it.

With this event I was motivated to do some research about studs. An important thing that I have found is that the fastening nut should be adjusted with a torque wrench and the last movement of the nut to its final torqued position should be through a minimum continuous movement of 90 degrees. I feel reasonably sure no one in this group has that capability! Even though many of us have the X-12 torque multiplying wrench and use a torque wrench with it, the movement of the nut is in small incremental steps and not a sweeping arc of 90+ degs.. The same would hold true for the impact wrench with a torque stick added behind the socket.

If I ever buy another used bus among the first things I will do is change all the wheel studs at the time of purchase.

JIM