I am shocked I don't know the answer to this off the top of my head (or I have forgotten...), but are the rear stock axles the same Left and Right? I have a pair sitting here and I can't tell the difference. I have searched here and not found anything confirming or denying it explicitly. To be clear, I am asking about 3 bolt non-LSD, as I know the answer for other (non-stock) versions.
I did check CAPS and I see the left/right shaft repair kits are the same part number. The version I was using (on-line) does not seem to show assemblies anymore to check those part numbers.