You should find the answer somewhere on this web page. You will need your serial number. http://www.mrgearhead.net/faq/gui****ater.html
There should be a date stamp on the butt of the neck. Loosen off the strings and unscrew the 4 screws at the body neck joint. Gently move the neck out of the body until you can see the stamp. Then carefully, put it back together again. Cheers,
i dont know how to see the series no.... i see the no is T900770 (on the neck plate) what is this no.?