Clutch pedal will not come back

Thanks for the pics, never became an issue for me and I've used 3 diff clutches -hays/southland/centerforce, maybe just luck...

This should be recognized though..
''This modification will work whether you have a three-finger clutch or a diaphragm clutch. The only difference is that with a diaphragm clutch, your pedal may sometimes stay on the floor if you have the over-center spring in place. I wouldn't recommend using a Borg and Beck or Long style clutch without the over-center spring.''MMMagazine quote

My car is in fresno so I can't get under and measure but they did come from a 3/tree / car ....but if thats my case....my pedal still comes up just fine.