GNX Differential Fluid Capacity?

[1KWIKSIX]

Can anyone confirm what the fluid capacity is for the GNX?

I’m sure the larger / deeper cast aluminum cover would accommodate more fluid than the standard stamped metal GN diff cover

 

[1KWIKSIX]

Perhaps I just add enough 80W90 fluid & positraction additive till it’s just below the fill plug opening on to e side of the differential ?

 

[samgauto]

Once it comes back out of that top fill plug your good

 

[1KWIKSIX]

Thanks to all , I did manage to find my original factory owners manual which confirms filling differential till the oil comes out of the fill hole