I have a minor setback brewing with my 70 restoration. It seems that the bottom of the steering housing, where the adjustment plug threads must have been run into something.

The metal was rolled over onto the adjustment plug. I corrected that issue with cold chisel (very lightly), but the plug will only come out about 90% of the way. The threads in the housing are damaged, as the plug threads were nice and shiney as I threaded it out. Right now, it's back together

and tighter than it was, but I'd really like to replace the retainers and check the condition of the cups. Any ideas would be appreciated.