Wet Brake, Dry Brake (Left Brake, Right Brake...) - 64 Valiant

Hi all,
I am changing out a leaking Oil/Grease seal on my driver side rear axle and noticed I do not have the gaskets installed that are listed in the manual (see below). The gaskets I can find online are 5 bolt ones and my rear only has a 4 bolt retainer plate. Following the part number in the shop manual leads me to only B body items. Does the 5 bolt foam gasket work for this application? Were these not necessary on the 7-1/4 rear end?

Second question, on re-installation of the axle, do I pack the area around the bearing and collar with grease? I cant tell how much grease was suppose to be in the since most was in my brake drum mixed with oil from the blown out seal. -Todd

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