Old mods?

So recently i got Garry’s mod it’s like a dream come true since i wanted this this game since i was 13 not i’m 17. but i found out that some old mods doesn’t work on the new so called gmod13? like Modulus hoverboard, etc is there anyway to make them work?

Your best chance is to look in the Workshop. Tools from other sources, even garrysmod.org are mostly unstable and not recommended for use.

You can also check this page to see how you can fix old addons.