Late '80s/early 90s 32RH. Basically the final iteration of the A999 after Chrysler started changing the transmission designations. Found in V6 and 318 vans, Dakotas and light-duty pickups (D100/D150).
32RH has the connector for the Tow/Haul override switch, but is otherwise hydraulically controlled lockup like the earlier A999.
Those reinforcing ribs on the tailshaft housing make it a snug fit at the crossmember in '67 and later A bodies, and require significant grinding to fit early A bodies. The snap ring cover on the tailshaft was also moved from the bottom (on most 904s) to the side of the tailshaft, which also can get a little snug to the early A upper crossmember.
Good tranny, though- extra clutches, low first gearset, upsized 3/8 cooling lines among other things.