Grease from behind Rzeppa joint

[fdFifty]

I have grease coming off of the t-case side joint on the front driveshaft. After I saw the grease spray I thought the boot had torn. Upon closer inspection the grease is coming from holes in the yoke directly behind the joint. Any guesses as to what’s going on here?

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[gpurp]

My uneducated guess tells me the joint is better served with grease staying inside the assembly. Dry joints tend to fail. From what I can see the JK rzeppa doesn't have those holes. Hopefully someone will chime in who has disassembled the JL version.