Oil in flux tranny

[Unsullied_Spy]

If you can get some grease that doesn't fling, that's all you need to keep those gears happy. I like the idea of oilling the tranny, and I think Oil Stabilizer would probably be the best bet to run in it. Seal it up with some silicone and it should be fine. 500k in the front/rear diffs is like nearly locking them and would make for a terrible lubricant for the reasons Freezebyte stated, way too much drag.