My 72 had L44643 bearings (2 different manufacturers, same number). Napa's replacement with BR14. NAPA's replacement seal was 12165. Be prepared to change the race. I decided to change1 hub. It was only $30.00 or $35.00 for the complete kit (hub with race installed, bearings and grease cap at the local trailer supply company.
I hope all goes well.
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