Originally Posted by Blacklightnin
Can the bearings be changed to fit later models?
Probably, but then you have hub, rotor & pulley issues to contend with. If they could be fitted with just a simple bearing change, I'm sure the wheel manufactures would offer them to all years.
I suspect that machining of the hub would be required. That could probably be done with casted and billet wheels, but a lot less likely with spoked hubs.
Keep in mind this is all just speculation on my part. But common sense would tell us that if it was just a matter of rotor & pulley spacing, the MFG would offer such spacers.