Need Dimension on a part for BX 3 Point Hitch

[cpy911]

Hello,
If anyone has a BX, I am looking for the width dimension as indicated in the image attached. I am doing a project and could use the dimension before I purchase a 3 Point kit.
Thanks!

 

[wild bill]

My plate is 8 1/8 inches

 

[cpy911]

My plate is 8 1/8 inches

Thank you, sir!