As dphillips indicated at the beginning of his posting:
"I would like to make this clear, I tried doing the disc swap to my 88 and it will not work as per these instructions. This how to is 1990+ c clip axles only. In order to fit this swap to non c clip, holes will need to be drilled for the backing plate to line up. Most importantly about the holes, I did not do it, but believe you will have to tweak the center for the bearing pressed axle shaft. For sure you will have to for the 4 holes that hold the backing plates. However the brake lines and the booster will still work. "
I am looking for a prefabbed backing plate in order to perform this swap. Other people that have tried this swap on a D44 have had to re-drill the bolt holes and widen the axle tube opening. The kits that I have looked at are $600 to $800. I can get most of the parts from a JY. I just want the backing plates prefabbed.