I have a 95 cavalier w/the 2.3 liter motor. Ever Since I got the car, I can feel a vibration coming from the front end of the car. I changed the wheel bearing on the side that I thought it was, and it actually got worse. What could cause this? I think I have an engine mount that is bad, because I can hear a "click" when I hit the brakes or when I shift from reverse to drive, or vice versa. Could a bad engine mount put strain on the drivetrain to make a vibration? Any help on what this could be would be appreciated.

Front end vibes can come from many different things. If you have low tire pressure, loose lug nuts, bad motor mounts, bad alignment, or loose suspension components.

Sounds to me like the dogbone/engine strut... bottom left.