Holden VN Commodore harmonic balancer noise & replacement

I didn't know what this horrendous noise was coming from my cars engine. After a little research i discovered that is was a faulty harmonic balancer so this video shows what the noise actually sounds like and a close up look of the fault.
Hopefully you will now recognize the problem if this happens to you. I'm not a mechanic but i manged to loosen the crank bolt and remove the harmonic balancer by hand. Then placed the new one right on. Simple right took me all weekend lol .!!!