Can anyone ID this axle?

[Blue]

I can pick up this axle as it sits for free
(no, that's not my car behind it.. )

but as you can see it needs brakes, but I don't know
if I am getting into a big mess if I get it as he has no idea
what it's from..

It's hard to price and order parts if you don't know what it is..

 

[R Pope]

It would help to know the wheel bolt pattern.

 

[chopper tom]

axle

looks like an f-100 axle[49-50's],but looks like some one filled in under the spring pads.

 

[Blue]

Turns out it's 5 on 5.5 bolt pattern