The diff is leaking and the shocks get air in them very easily no matter how perfectly air free they are when built. Has anyone had these issues?
The diff seems to leak passed the large o-ring onto the gear teeth, maybe a thicker o-ring as the white one doesn't look like it is enough to create a seal. The shocks seem to have a lot of play or wobble in the shafts. Could it be this letting air in?