Garry's Mod Version 9.0.4

An old version of gmod the version of this gmod version is 9.0.4

the full tutorial for instalation is here - HAHAHA BANANA PHONE INSTALL IT YOURSELF 

but seriously it is here - https://www.youtube.com/watch?v=RqDmyKW1joo

but download it from this link here beacuse i think that file isn't really that safe