I guess we need to Find the gear size break ( I don't remember) then we will know what you have because we know what won't fit.
Let me research that some as well. Not sure but if your carrier is on the smaller gear size I have a 2:45 ring and pinion I Just took out of my unit when I switched to 3:45s
You could have them if they would work for you. That's if a 2:45 is even acceptable ratio for your wants/needs.
I wish I would have just put new bearings on the open and been dun with it a month and $200.00 agao... Why don't we know more about these rear ends here, they are plentiful (sorta) and strong for our lite A bodies and hold up to 350 HP easy...