The 10 ft ram on the bucket truck boom has a snap ring in it. Actually it's more of a retainer ring cuz it kind of rolls in from outside it doesn't actually snap in. Feeds in from a little slit on the side of the cylinder and rolls around in the groove... it's weird took me a long time to figure it out.

I know a lot about a lot of things BUT I still have a lot to learn.
Life is what you make of it. So, why not make a working machine to make it easier.