Aparently the key is not to use regular RTV - but instead go to Toyota and get their Form In Place Gasket. It's grey.
It forms a fairly pliable, almost rubbery seal that does a better job of handling the constant torque from the gears.

With 200+ Billion electrical parts, the world most complicated machine is inside your own skull.

Question Reality.
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'89 Rnr DLX "SR4.5", 32s w/ 5.29 locked f/r blah blah