Throwout bearing slop on input shaft

Picked up a ‘75 Ramcharger & trying to diagnose an occasionally shaky clutch pedal when it’s depressed. The Z bar is floppy on the ball stud but there is no spring on the clutch fork but the most issue I think I have is the up & down movement of the throwout bearing on the shaft. Is there suppose to me that much room for movement in the throwout bearing or should the throwout bearing have had a smaller inside diameter? Or does the spring on the fork keep slight pressure to keep it in the right spot?

https://youtu.be/l8BFz8sfBnQ

Looks way too loose.

The video looks like it might be a Hemi TO bearing on a non-Hemi shaft. I recently got a clutch kit from Autozone that had a plastic TO bearing sleeve, fit real loose...I didn't use it.

That would make the most sense. Everything has been overdone on this Ramcharger on the engine. Low compression 318 with a 750 Holley, Edelbrock performer intake, MSD pro billet distributor, MSD 6AL, Centerforce dual friction & Centerforce flywheel. So I’m sure they heard “Hemi throwout bearing” & figured it’s “got to be better” so I need it.

non Hemi TO Bearing Assembly; Bore=1.2525"
Hemi TO Bearing Assembly; Bore=1.422"

A few other parts store clutch kits come with that plastic throw out bearing retainer as well. I installed one on a V6 Dakota a guy brought me once. 3 weeks later I got to replace he plastic throw out bearing. The parts store replaced the entire clutch kit and didn't want the old one back. So I have had a new in the box clutch disc and pressure plate sitting here for about 3 years now.

Its also possible the input shaft front bearing collar is worn as well, this stuff isn't getting any newer. Gene