I've a Mercury Challenger that is blued (Rather nicely too!)
I can't remember what mk this one is but it had some work done by a gent that i've forgotten the name of!!, I think the action was refinished too as it's not like the normal glossy black finish!
It had the axis pin done away with and was threaded to take a bolt and nut!
It had other stuff done too..
Here's two more..
John..