Really appreciate all the help> Here is some more info:
1) Its a small bolt pattern, but it appears to be an adapter plate has been added to achieve this.
2) The ball joint is is measuring just barely over 1-3/4" with a tape. square to square. It has
K704 Stamped into the steel/ master pro. appears brand new. Im thinking thats the 1.809" ? ( however remember the origin of the post, the ball joint
"pushed through" the a arm/stripped the threads, perhaps the previous owner installed the "small" ball joint into the "larger" A-arm? or perhaps the threads are the same and its the ball joint shaft that's different?) Here are some more photos.
View attachment 1716244050
View attachment 1716244051
View attachment 1716244052
View attachment 1716244053
View attachment 1716244054