Berlingo NAD gearbox drone

[ally406]

I would think stamped on the bell housing somewhere, I'm not sure. A quick Googling would suggest Berlingos use either the BE3 or BE4 box, and that diffs from BE series boxes are interchangeable. So in theory even if you have a BE4 you should be able to change it out with your BE3 donor diff. However you might be altering the final drive, particularly if the XUD box is from a turbo (a quick tooth count of the crown wheel should tell you). Or if you can get the diff out, perhaps you can source new replacement bearings? Or just swap bearings from donor box?