Here it is mounted. You can see the ears go backward. Don't forget to put the 4 bolts in that hold the torque tube in place when you assemble it to the rest of the trans!
Thanks to Mac VanPelt for the use of his pictures today. These two "bat wing" thingies are normally referred-to as "bearing retainers". They will in fact bolt to the rear of the transmission in two different ways. When using such in a different vehicle as you are, all bets are off and either way may be used to help adapt to your situation. Either way will have no adverse effect on the operation of the transmission. DD
The 78- 7085 rear bearing retainer used on the 39 and other transmissions has a cast bump out with a small hole for the clutch pedal return spring. The bump out and hole go on the drivers side.