appears to be clutch linkage mal-adjustment or incorrect throw out bearing/throw out fork. can you back off the linkage enough to feel slop in the fork/bearing assembly?good luck.mike
Other things to check: -- Pedal linkage not properly adjusted ==> not fully lifting pressure plate when pedal is to floor. -- Pilot bearing damaged during reinstallation or tranny input shaft not properly mated to pilot bearing. -- Clutch plate facing wrong way. -- Clutch plate not free to slide on input shaft splines.
Hope that helps. Good luck with solving it.
All the Best, Chip
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"It's wise to choose a SIX"