I'm planning on doing this swap over the winter months to my 73 Duster w/ an 8.25" (now if I could only find a hoist that would fit in my igloo). I'm sure somewhere there's an answer to my question in FABO but to make it easier, which years & models of the Grand Cherokees & Dakotas have the...
Here's a link to the RockAuto site which may have what you need ...
https://www.rockauto.com/en/catalog/plymouth,1968,barracuda,5.6l+340cid+v8,1228621,brake+&+wheel+hub
RockAuto has them for $2.13 CAD (part #USA33067) but there's a lot of other differentials out there uses the same, including: Chrysler 8.25" and 9.25", Ford 7.5" and 8.8", GM 12 bolt, 8.5", 8.25"
Not sure about that specific number but RockAuto has application specific ... may end up being the exact number you need (rebuild part numbers are different though).