Trojan 1900 Torque Converter Leak

I have a Trojan 1900 with a Clark C272 torque converter that continues to leak into the engine flywheel pretty severely. About 1 gallon every 4 hours.

I have replaced the oil baffle seal and o-rings (#'s 88, 93, 94 & 95) but the leak is still the same as before. Replacement of these parts is specifically mentioned in the troubleshooting section of the manual for the symptom of trans oil in the engine flywheel housing.

I am almost certain that the oil baffle seal is still leaking and not the o-rings because I used permatex on the o rings and got a nice consistent bead around the edges when everything was torqued down. The oil baffle seal has been installed facing the right direction as well.

The oil seal that the Clark dealer gave me for this was a Spicer 235593. It did not seem as tight around the impeller hub as it should of been during assembly. It made contact all the way around but wasn't super tight. Should it be a really snug fit?

Trans pressure gauge in the cab reads normal and loader seems to function just fine. Does this seal need a certain pressure behind it to work properly?

Would an issue with the gravity drain back to the transmission sump have anything to do with this?

What am I missing? Thanks.

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