Transmission filter for '87 GN

[Randy Hagins]

I've been out of the Turbo Regal scene for a few years, I kept quite a bit of information written down from my past GN's but can't find what transmission filter I used. I know it wasn't stock. Could someone tell me what they recommend and where to get it? Thanks in advance!!

 

[Chuck Leeper]

Bottom feed, from, I think, a 700R4?