loud sound when driving my car ? help please!

ok i currently put some donuts on my car. everything was doing good. then now my car makes this bumping sound. eveytime i am moving. the sound is very loud and sometimes make a sqeaking rubber sound. one person said it could be the axels but then another said that if its the axels then i wouldnt be able to drive the car. i need help any ideas on what the probem might be...thank you

By donuts are you referring to the round rubber dampers on your CV shafts? If so, it sounds like they are misplaced and hitting something somewhere...:eek: