L3400- changing the front axle oil

[backblade]

Today I tried to do the 50 hour oil change in the front axle. But I could not figure out what size are all the oil plugs there. Seems that the filler plug was metric 27 mm (which I didn't have) and the drain plugs looked like 17/32. It was hard to tell with all the paint on them.
Can anyone give me some info?
I intend to fill it with Valvoline 80W/90 synthetic blend.

 

[KennyV]

They should all be metric but SAE should fit the larger sizes… KennyV.