I'm at work, so I don't have the opportunity to check in the manual. And, off the top of my head, I couldn't tell you . . . But, have you downloaded the manual? It's available at the top of this forum. Just a suggestion. Or, you can download it from my signature.
BrianA. Just done the work.Front dif. take the small screw out below your fill hole, that is your full over flow.Rear dif. fill to one inch below the fill hole.(take a tie rap or something else flexable and stick it in the fill hole to check level)