Need help locating a part

Apparently they were used in '60-'62 automatics because there was only a strainer in the pan.

See page 32 of this document: http://www.plymouthbulletin.com/DVD-Plus/Issue294s.pdf

Unless you're using one of these trans then you don't need it. If you are, for some reason, then you can find generic inline trans filters from a number of sources (via a google search).

Oh, and stay away from the creeps.