my transmission pooped???
 

it's a 91LS tranny...it shifts fine when the the transmission cover is off..but when i slap that bad boy on it barely moves when neutral(trying to shift from 1st and 2nd, 5th and rev.)i've already done a session of filing the case cover thinking that the mechanism that moves the fork is touching the case. man this is such a PITA. whadyah guys think is wrong???