Vorteks 2X2 to 4x4 differential upgrade.

[Richtea28]

What type of grease should I use?

 

[WakJoko]

Any small amount heavy duty grease if u r using metal diff inside the gearbox to lube the diff & input gear. doesn't make sense for putting grease to plastic composite gear & 10k-30k cst silicone fluid inside diff should be fine.