1998 Legacy Outback Manual Transmission. Just yesterday, my car started making a cunking/slamming sound when I started it up. It would start, but when I released the key, it would thunk pretty hard (the kind of sound that makes you think twice about even driving it). I gave the starter a few taps with a hammer and extension, and it didn't fix the problem, so I figured the starter was out. Replaced it with a reman and the sound is still there, but it has evolved slightly. Now, while starting, it will make several thunks/clicks/slams/ while starting. It has always started, I just worry about what could be wrong and if it's too hard on it to keep starting. I'm open to suggestions, I have no idea what this could be.