Can anyone identify theses spindles?

I was told they were ford econoline. What Year? They came on a hotrod I am working on. Sorry the picture is a little fuzzy.
Thanks Matt

 

Maybe F1..

Is the steering arm longer on the other one?

 

No the steering arms are the same length.

 

Bump

 

Yes they are Econoline spindles. The spindles in early Econolines are the same as the late models(63-6?) but the kingpin are a bit wider but thas all.

 

I have a set of them with the drum brakes on a 35 axle, they are 63 to 66 spindles......