best way to clean greasy rusty parts

[123hotchef]

Ok I just stripped some spare hub-knuckle assemblies for my pick up now I would like to clean and paint them. What is the best way? Quick soak in hot caustic the maybe the rust tank if need be or something else?

 

[Burdekin]

Degrease and media blast is best.

 

[Seadog]

This works quite well - https://www.screwfix.com/p/no-nonsense-heavy-duty-degreaser-5ltr/88668?