|Dan the Gear Man Tech® Note:
Older Dana 44 diff covers up to the mid 1970's are made with embossed flanges and are designed for use with a cover gasket. Later production axles have heavier gauge covers with flat flanges that were factory sealed with RTV Sealant. With the later covers, a paper gasket is optional. I always liked to use a gasket with just a thin film of RTV sealant on each side. It makes a fool-proof seal, plus the clean up is a breeze at the next axle service.