Grease and bearings for the supastox

[Frost]

Hi there. Baught a new diff for my supastox. I have been recommended to rebuild it strait away. To do so I need I think three different tipes of grease/lube to do so. Can anyone recommend an all rounder or know where I can get some cheep?! Also when taking the front wheels off noticed two of the bearings came apart. Is there any difference in bearings? Where's best to buy thease. Will soon be racing again eventually!!!