Yes the grease coming thru failed seals gets on the braking surface. Just remove the wheel, hub, replace with quality seal, clean re grease bearings, clean off brake surfaces - use Braklean or other brake cleaner, reassemble everything and go camping.
Brenda and John
'14 Ram 3500 MCSB 6.7L HO PullRite 16K S/G, Grey Columbus 320RS Camped '14 - 146 days/'15 - 196 days
USN-EOD(Ret), Master Chief, 30 yrs,
Master Blaster of the Navy