Drop the valve body and tap the pump housing off from the inside out. I use a long 1/2" extension.
I always use A&A's bearing that replaces the thrust washer between the input and output shafts. I have beat that thrust bushing out on a couple of trannies. You loose 3rd gear just all of a sudden and it requires a near total tear down to replace.
Whats that bearing called?
I don't think there is a part number for it. I just order it by description. You will need to have one shaft machined for clearance. I think it is .060, but ask them how much when you order the bearing.