You have to replace the grease with new. I would use a synthetic grease. Rotation of the wheel is highly recommended. Never jack your 365BHS up by the frame. For multiple reasons I would jack it by the axle. If grease gets on the brakes you need a new bearing because you have blown the seal. Grease will come back into the wheel hub, I highly recommend trying to wipe out much of it as possible. If you blow the seal you dealer should of been doing it for you in the first place.
Derek, Wife, and 3 kids
2016 NorthPoint 377RLBH
2015 GMC Sierra 3500 DRW SLE Duramax
B & W Companion