QUOTE(rhodyguy @ Mar 28 2019, 11:54 AM)
Double check the set screws at the front and rear rod knuckle and at the rear.
Sounds like one of the set-screws has come lose ...
Start with the one on the main coupler, from under the car look where the shift-rod exists the rear firewall.
There should be a rubber protective boot over the coupler, move that out of the way and look for a small set-screw.
It should be tight. If not, remove it and add a dab of (red) loctite into the threads and fasten again (small metric Allen wrench, can't remember the size).
If it has completely backed out, you might get lucky and find it inside the rubber boot.