There's a quick, permanent fix that also takes care of the egg-shaped holes in the shift tower. Tap the holes in the shift tower for a 5/16" bolt and screw short bolts into the holes with the threads ground off where the shifter pivots. Use a drop of Loctite to make sure the bolts don't back out. If they ever wear again, just replace the bolts.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!