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Unless you put lock washers under the bolt head, there should be enough sealing between them and the axle housing that even a small amount of sealer should take care of leaks. Also as was said above, these are not standard fine thread. I use the white thread lock on the bolts and anaerobic sealer between the gaskets and housing.
https://www.zoro.com/permatex-anaero...UaApIYEALw_wcB
may be over kill but that is how I do it.