Hi, I recently built this jig using my S series diff as a template to do my Hilux G diff conversion. I made it in several bits and in a way that it can be reused without cutting or destroying it. You could use this to fit mounts to ANY diff that you wanted to get into an ae86 or equivalent/similar setup.
chasing $200 for it, which is pretty cheap considering you could use it to build countless diffs.