Best place to look for used trailer running gears?

[SammyRouen]

Hey Ya'll,
I have a question! So I'm building a new coop in the spring and I want to make it a large mobile coop. I've heard of people using old hay trailer running gears as the base but I'm having trouble finding one. Does anyone have an idea of where I should look?
I live in close proximity to Lancaster, Pennsylvannia

Thanks!
~ Sammy

 

[aart]

Is this what you're talking about?
Agricultural auction?
Wherever they sell used farm equipment?

 

[ChickenLegs13]

I'm thinking house trailer axels. In my area many people live in trailers and they set them up on concrete blocks and remove the 2 or 3 axels so everybody's junkpile has an axel or 2 in it.
Check the List of Craig and junk or scrap yards.