drain the tranny and see if there is any metal shavings in it, it could be a bearing inside the tranny, i dont know about the throwout bearing, it should have a magnetic drain plug so if theres alot of metal shavings stuck to it, then u prolly messed up the innerds of the tranny, i dont know alot about trannys im just saying some things that i noticed and did when i blew up my tranny although it sounds like urs isnt as bad as mine, i hope that helps