If I don't replace it I run it across a bench grinder wire wheel. Some parts get painted some get anti seize some get wheel bearing grease and then some you just have to replace.
When I am done with a job I mask it all off and paint.
Sent from underneath my Jeep
89YJ 2.5L TBI, AX-5, NP231 SYE, Ford 8.8, Yukon Grizzly, Tom Woods Shaft, 33" BFG T/As, 4" lift, Warn VR10000s.
AF Jeep Club Tail #184