Yes, the automatics have filters.
But I'm confused about the "70.9B" that you said is your parts list. I can't find that parts list in the MPC, nor any mention of 70.9. But I did find this table which shows the designations for each automatic tranny and I don't see a 70.9. What am I missing? What transmission are you working on?
CATALOG PART LISTS ILLUSTRATION
DESCRIPTION and TYPE IDENTIFICATION SECTION SECTION
Automatic 3 speed C3 A70.1 A70.1
Automatic 3 speed C4 A70.2 A70.2
Automatic 3 speed C6 A70.3 A70.3
Automatic overdrive-(PKB) A0T(F1OD) A70.4 A70.4
Automatic 3 speed C5 A70.8 A70.8
Automatic Overdrive 4 speed A4LD A70.11 A70.11
Automatic Overdrive 4 speed (PRA) E40D A70.15 A70.15
Gary, AKA "Gary fellow":
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Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI