Try this link for a great deal on ceramic bearings and diff balls here in the USA!!! :
http://members.fbx.com/~rmurdock/win...ion_Parts.html

#wt2707 is the flanged bearing complete car package w/12 diff balls too!

(or you can buy the bearings or balls individually)

Great people, great price, & fast shipping!!!

but don't forget the Slapmaster thrust bearing!!!!!!!!!!!!!!!