I should be more specific about the gear box I am asking about. Sorry I do not know much about what a part is called or which part is which. I am fairly mechanically inclined and very electronically inclined. But this is my first RC that didn't come from wal-mart. With that said does anyone know what weight of oil to put in that gear box. (see attached picture) As well as the maximum in weight of oil for these shocks.

Thanks again.