Hi Harlé
The video sure helps explaining the problem, it does look like something is out of line. Not having Ford it will take look at the manual which I did when I looked at the manual found that clutch assembly is not unlike the whole setup in my 49 Lincoln which basically has a Ford Truck engine.
It does in deed look like something is bent, worn or out of line.
Check my logic guys
7508 Bushing on both sides, as the load is all forward on drivers side and mostly backwards on the passenger side would tend to wear on one side.
7510 Shaft with even the slightest bend would make the lever arm 7511 look like it was bending as rotation. This shaft could be bent if the linkage 7531 up to the clutch peddle was allowed to over travel. Is it just a trick of the photo that your linkage looks like it has been welded?
You guys with the Fords will have to step in on clutch adjustment how you set it up so that it disengages near the top of the stroke yet the peddle hits the floor/stop before you are trying to over rotate the fork shaft causing it to bend.
If all of those parts are OK then check the pins 352581-S are they worn or have the worn the shaft holes to allow play.
Keep us posted on your progress.
Cheers Phil