Is this a Mustang part?

[spork1o1]

I had an clutch equalizer bar block stud that I used to make bracket for my 5.0 roller block. Would like to know if it is an original mustang part.
It uses the 5/8 ID X 1 inch OD bushing and it had the rubber seal not a felt washer.

 

[2+2GT]

Hard to say in the pic, but it looks like an ordinary 65-70 engine mounted pivot with a rubber grommet pushed onto it instead of the felt washer.

 

[spork1o1]

When the bushing and seal are removed, it has the profile of the one in the drawing. And it uses the big block size bushing, not the smaller 7/16 X 3/4 inch bushing for the 6 cylinder / small block V8.