There is an oil seal at that point.
Shouldn't leak a bunch at that point as it is above the oil level. But certainly could produce a drip or two Should not leak continuously while sitting still.
Seal, Reduction Drive Shaft Oil
Part# IH-385076-R91 (Superseded to IH-385076-R92)
OEM Warranty Repair Part for Cub Cadet
#20 in the diagram
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