'91 4Runner V6 4x4 with 305,000 miles.
Recently I heard and felt a really loud 'Pop' from the clutch pedal while shifting gears. Not really sure how better to describe it.
Anyhow, ever since then it's been getting harder and harder to shift gears and my clutch pedal is creaking. I have to push the clutch all the way to the floor and I'm still not getting full disengagement.
Cannot get it into reverse without grinding. If I try to start the truck while it is in reverse I get nothing. Acts as if I'm not even pushing the clutch pedal at all. Can't even start it using the clutch bypass switch when it is in reverse.
It starts fine when in any other gear.
It is not low on fluid. No leaks. No signs of a fading or failing clutch prior to the 'Pop'.
I examined the pedal and could not find anything that looks cracked or broken.
I did notice that the button/switch at the bottom of the pedal swing was not getting fully depressed. I readjusted it but this did not make a difference.
I also noticed a button/switch at the top of the pedal swing that gets depressed when the clutch pedal is released but it appears to be operating normally. What exactly do those two switches do anyway?
I know this isn't an absolute test but I am able to put it into 3rd gear from a stop on level surface and take off with no problems.

Any help would be appreciated.