As noted, the slinger is in backwards. It is probably causing MORE oil to go through the bearing, not less.
You MIGHT be able to get the rear bearing out without pulling the transmission but be very careful that you don't pull the main shaft backwards with it.
I've never attempted to change this bearing while the transmission was in the car - have found it easier to just pull the engine and trans as a unit. I hate trying to work on these things when they're in the car - total pain in the rear in my mind.
I can have the engine and trans out of my 32 in about 2 hours - but I've also done it a few times!

