A day and a half of searching and found the large axle flange gasket under the following at the Filling Station.

Part Number: AF-365
BRAKE DRUM GASKETS
6 lug front or rear
1929-48 Passenger (exc. HB,JB);
1929-59 1/2 Ton Truck;
1960-66 1/2 Ton Truck (exc. 4WD)
Replaces 476518 (4-1/16 ID x 6-9/16 OD)

cavebull
Stovebolts - so easy even a Cavebull can do it.
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