Maytag helical Drive brake assembly’s
Hi Harry, your way overthinking this, these brake assemblies nearly never fail I haven’t change five of them in my lifetime.
The oil is dirty that’s what brake oil looks like in a used brake it did not look like it has water in it.
If there is a small amount of water in it it will dry out because the brake is not sealed like a transmission.
In any case you can spend all the money you want on this or you can just put it together and it will work fine. I’m not even sure that you’ve demonstrated that either one of the bearings were bad just because they got a little water on them may or may not ruin them. The bigger problem is to figure out why water was getting in this area and to prevent it in the future once everything is freed up and cleaned.
John L
Hope you get it going soon.