D2 Rear Wheel-hubs: are Loctite and/or RTV needed when installing a new one?

Or just the single oring that comes with the kit will do just fine? I have just disassembled mine and noticed a lot of old RTV / Silicone in the axle where the hub fits. There was also not any sign of "red loctite" on the splines of the shaft.

Also, the wheel-hub kit came with some sort of grease - is that for the oring ? Or do I have to grease the inner part of the ABS sensor?

Appreciate any thoughts from the folks here.

Thanks!

No need for any sealant that's why an o-ring is there, better check the WSM if you have doubts