I have an old Kaywoodie with a permanent three hole stinger that had this problem.
In a
desperate reckless mood I slid a miniature screwdriver through the stinger holes
and torqued the stinger into correct alignment. To my amazement, the stinger rotated
compliantly without loosening-up.
.
If the wood in the shank is threaded, and probably stripped, you might consider reaming out the shank to eliminate the old threading. Then you can krazy-glue a short piece of hardwood dowel rod into the shank; drill it to size; and re-thread it with a tap. This is best done by a pro. You can also have the pipe converted to a push-on stem or military mount for about $25.00
.
Although I probably sound like I know what I'm talking about, I've never done anything like what I described. :wink: ...so there may be better solutions.