Sorry, Will. I built this thing in 1984, before forums, and all the pics were taken last summer. I haven't been under the tractor to see those cross bar connections since. They're hidden from view anyway, the posts take a 90° turn at the bottom and run 6" inboard, right under those connections.
Here's the best pic of the bottom of the right post. That's dirt at the post to crossbar interface, not weld. Remove the arms and disconnect the diagonal bracing and hoses and the posts will slide off the cross bar. The little hole above the cross bar is where the weld broke on the 5/8" safety pin.
You would find it hard to believe what this loader has done.