Tamiya similar parts question

[Supermario]

Just when I think I have everything I need for my spare parts truck build I run into something I'm missing!
My question is. Are there other Tamiya models that use similar parts? I'm looking for the steering ball studs and the servo savers. As I surf the net I've found lots of both items for stuff like clod busters, willy etc and thought, are these parts on the semi trucks found on any other Tamiya models?

Thanks for any input and suggestions.

Mario