Originally Posted by
symmetricon
I'd replace the thrust bearing for sure...
I'd both thrust and main assemblies if I were you
I have yet to find a ball diff delivered assembled from any manufacturer that didn't warrant a full teardown/rebuild before use.... either because not asssembled properly, or not using the proper fluids. I'm surprised Xray went that route. Preliminary disassembly is a must I would say... The thing is, I didn't get one as I bought mine from Europe and I would have loved to get one to be honest
But the gear diff is beautiful anyway!
(note that even the gear diffs in my yokomo cars aren't assembled properly at the factory... O-rings typically pinched.)