Super C Brake Housing Leak

[Lfdfireman]

Evening folks, had a question about a leak I have from around the drum housing on my 53 SC. I cant quite tell where it is coming from and thought I would get a few thoughts before I tear into it. I included a couple of pics if that helps. I believe there is a o-ring or seal once the housing is off that might need replacing where it bolts up against the rear end, but I havent been able to pinpoint a part number just yet from my parts catalog. Would love some thoughts or input from the experts here! Thanks!

* The oil is dripping from the underside somewhere where that V shape point on the bottom side of the housing.

 

[Janicholson]

If the brake works OK (or at all) the leak is in the axle Bugle where it attaches to the final drive housing. In my opinion cleaning that whole area (pressure washer or hand effort) is first. followed by tightening all axle housing to final drive casting bolts. If some take even a quarter turn it might fix it.
If the brake doesn't work, or grabs radically, it may be the pinion seal. There is no gasket or o-ring between the brake casting and the pinion housing. it is a dry chamber. Jim