Hey Guys, I believe my 1st and 2nd gear syncros are worn out in my 2002 Mazda Protege 5. I can get a manual transmission out of a wrecked 2005 Mazda 3 4dr. hatch back. Does any one know if they will interchange? They appear to be a lot alike by my initial inspection. Why I have it apart I am going to change the clutch. Any suggestions? Also, Does an aluminum flywheel really make that much difference in freed up horsepower? ....Thanks!!!