seeing and working in and around is very differant
iv seen planes but i dont know anything about them
Well you said
u are arguing with two guys who work with these things everyday
and have seen trucks bigger than u ever imagine
I'm not sure if you are trying to have a pissing contest or what, but not everyone does that type of work. So, before you start trying to compare your schlong to the rest of the site, you better be playing on the same level. Yeah, I've seen a ton of those trucks. My grandpa used to work in quarries with those trucks. So yes, plenty of us have seen them on the road or in quarries working. However, not everyone has the chance to drive them.
But back to the main point. As I quoted, notice the word I enlarged. By the way, who said they know everything about big trucks? Might have missed it, but I didnt see anyone claiming to know everything about big trucks.