hey guys. Im having some troubles with my clutch, i think.. when i pull the engine over its trying to move, and theres a loud screeching, ive taken it all apart and i dont see any problems. I cleaned everything up and put it all back together and it seemed to be fine, but then it started doing it again. Again everything inside looks fine so im kind of stumped.

how much end play does the clutch bell have? iv had it happen where when i tightened the screw that holds the clutch bell on the crank its to tight and has no end play, at that point the clutch bell and crank are mated together.
iv also had the clutch bell rub the flywheel, so check for that.
also make sure the flywheel is clean and scratch/gouge free. that can cause the shoes to get stuck.
the only other time iv ever gotten a screeching sound it was coming from the pull starter.

If there is indeed a problem with the clutch, check the spring(s). If you turn the engine over and the truck wants to move, one or more springs is likely broken causing a shoe to kick out and grab. Lack of endplay could cause this to happen too, but it would have to be crazy tight for that to happen. A bad bearing would be more likely to cause issue versus lack of endplay.