Hurst super shifter linkage

Over the decades,it seems to me the biggest single issue with 833 shifters, is not the shifters at all.The biggest problems I have seen is the transmission-end levers "wallering" out where they bolt on to the little studs.They can feel tight on the wrench, yet with a bit of resistance, they can re-index themselves. This is terribly annoying.The usual reaction is to re-tighten the nuts or loc-tite the nuts. But that is not the issue.The issue is the fit of the slot in the lever to the matching drive-lug on the internal lever. The lever slot is very hard, but the lug is less hard. If it comes loose the drive-lug gets its corners rounded,and soon there is a bit of play, and then it becomes very difficult to prevent it from happening over and over again.
It is very difficult to do any repairs to these parts with the tranny cover installed.
But I have found that a thick-bodied permatex product,when correctly applied does a pretty good job.The stuff has to go to where the parts are wallered out, and no place else.Then reinstall the nut with blue-loctite.You need to work the lever a couple of times about every half hour, (more often,at the outset), to be sure it didn't wick into the cover. If the cover is off, then just lay it down with the inside facing up.
The thinner red-loctite will work too, but it has a tendency to wick up into the cover and completely seize the lever up;and that's bad.
Once the levers are secured like this, the neutral gate can be re-centered and at least those parts will stay where you put them.Mine have not moved since 2004.
Good luck!