A500-42RH swap question

It WAS installed, car is blown back apart in preps to go to body shop. I crawled under there just for you to snap a pic. I opened up the drivers side a bit & drilled a new inner hole through the cross member and bracket. Camera angle is funny, but it’s close to 2-1/4 from the outer hole.
I was at the junkyard today pulling Liberty brakes to try the Mopar Action rear disc o tech swap down the road.