Here’s a little update on my situation. The engine side Z bar pivot ball snapped off flush with the block yesterday, so I had all kinds of opportunities to climb underneath it. Here’s a video of the driveshaft play. Is this a normal amount? This sound seems the same as what I hear as I engage and disengage the clutch. I took a peek at the drivers side motor mount as well and it looks like it’s fought the good fight. Maybe related to the clutch pivot breaking?
https://youtube.com/shorts/GX1Va1N5lOY?feature=share