Technical Posies parallel leafs?

I have a pair of Posies rear parallel springs for 1932-1934 Ford that I plan on using in a 1934 Ford frame build this winter. They are 1-3/4 wide with a spring eye of 7/8". Can anyone give me the pin to pin measurement for the shackles?
I can order the shackles from Posies, if needed, but shipping here to Canada, is half again of the purchase price. If I can find an OEM, or other application, that I can source here, that would help.

 

I've got a Posie rear kit in my '34. The shackles are 2 1/2" pin to pin.

 

Thanks!
If anyone comes across an application that uses this measurement,(give or take a thousandth), let me know

 

Might you not be overthinking the criticality of this dimension? Or did I miss the ironic wink?

Chris

 

Didn't miss it, I couldn't figure out the emoji!

 

Get some 1/4" x 1.25 bar stock and start drilling holes.