Destroked 450-Duhnam 22 loader question

[Dopp Creek]

450, I seem to remember you have a DL 22 loader on one of your Fords so I hope you can help. I have acquired a Dunham Lehr 22 loader for my 5000. Staring at the rear mount bracket with the current drag link; it won't work w/o modifying either the bracket or drag link. The photo shows the donor tractor and the steering system they had on their 5000. I can't find any reference to this part in my loader manual. If I start looking at salvage yards, what do I call it and what part number reference would I use?