hi everyone i have a 79 malibu classic which i recently freshened up the motor and rebuilt the tranny also installed a 2000-2300 stall converter when i got the car done we filled up the tranny and tried to back it out of the garage and doesnt seem to fully engage into reverse so i tried to move forward but car just sat there so i pulled the tranny back out to find the forward clutch was stuck so i pulled it apart and replaced the lip seals again and reassemble the tranny and after installation it backed out of the garage but didnt seem to be fully engaging so i pushed it back in and jacked up the rear end and put it in reverse seem to engage fine so i shifted down to first worked good also so i dropped it back down and now it doesnt seem to move at all please someone help i am out of ideas