Replacement rear ends for 69 dart?

I recently worked on a 64 Rambler that someone had installed a Ford 8.8 out of a early 90's Ranger. I measured it and found it is exactly the same width as my 8-3/4 in my 68 Cuda and uses the large 5 on 4-1/2" bolt pattern. Looks like it had a some brackets on it that had to be cut off and I'm not sure if the spring perches would be right or not but that's easy to remedy.