f'd if i know lukey,i only just learnt how to open a car bonnet today....

werent u having some probs locating or sizing diff bearings if i recall?
was the diff clearanced properly to the housing?
hop nunder the car & make sure the driveshafts are still inserted fully & the intermediate shaft is done up (tight )

was the release bearing changed out with the clutch?

go gather some more info & better noise descriptions