I have a Suzuki King Quad 300 4x4, picked it up as project, missing a few parts. Mainly missing the "race bearing" that fits over the "star" gear on the drive shaft. Is this replaceable?

A lot of these cv joints have replacement or rebuild kit buy an aftermarket company

Any idea where to buy these parts?

Is this rebuildable? It actually looks worn down on the inside, where the shaft is supposed to fit.

Parts Unlimited or Tucker Rocky an atv suppier..moose brand or quadboss or epi are good brands that I have used an had great luck with them so far