Spicer 44? (rear end)

I am calling junk yards for a XJ dana 44 and they are telling me there computer says Spicer 44. What do they mean they have a Spicer 44? I have found two dana 44's out of and XJ and MJ so far and am looking for the best price.

Sorry if this is a stupid question.
Curt

Dana/Spicer- essentially the same company.