If it were simple, I wouldn't be asking.
Since I had expected to be hanging some very heavy clothing on the pole in my bedroom closets (don't ask), I decided to skip the traditional cup-type pole supports and instead drilled pole-diameter holes in two of the upper shelf supports (1x6). The poles were cut to the exact width of the closet and the poles inserted into the holes before the double-width "furring strips" were nailed to the wall.
So ... some twenty years later I'd like to replace the poles without destroying the closet. Yes, I could rip out the shelving and side supports and install new stuff but that seems an extreme solution to the problem -- though the only one I've come up with so far that preserves the entire length of the pole which plugging the holes and replacing them with cup-type supports doesn't.
Suggestions?
TIA Norm