Fury diff oil and shock oil

[FURY Sidewinder]

I am upgrading my diff to steel and I have plastic bits in the oil, and I wanted to know what the stock oil weight and stuff is. And I want to know a suggestion for shock oil in the back I want something a slight bit stiffer I want to take the fury to the local track soon

 

[chargh]

Not sure what Fury you have, but if you have the manual start looking on page 16.
If you do not have a manual then you can download it here https://arrmaforum.com/threads/arrma-mojave-manual.7/
Hope this helps.