So last week I get the starter replaced in my car as the mechanic figured that was what caused the grinding noise, (sounds like when you start the car when its already running) So I go out this morning for work and it makes the same noise.. Didn't think it was going to start at all today, so I conclude it has to be the fly wheel. Anyone know how to change the fly wheel?? Is it something I can do in my garage? The dealer wants $750 to change it.

1999 Mystique Sport 2nd owner bought it in Sept 03
120000km 4 door, leather, loaded pics on cardomain, coatsy