Was driving today in second gear. Went up to like 8000rpm and tried to shift into third and it couldn't go in. Stepped on the clutch pedal and it felt different. Clutch pedal engages at the floor. Hard to shift gears. Car shakes when clutch engages. There is still fluid in the CMC. No leaking clutch fluid. I think its a spring the popped out of the clutch or something. What do you guys think?

 

Spring on the clutch disk has broken out more than likely. I would take the inspection plate cover off and look to see if you can see the spring. If you can't see it take the trans out. Either way you are going to have to pull the tranny.