A4 Rear Trans Seal Part #

Hello-
 
Can anyone provide me with a valid part number for the rear seal for the tiptronic transmission. I have a 2001 a4 1.8T 8D25MZ engine AWM trans FAL gear DAK. Want to make sure I get the correct rear trans seal. I see serveral part numbers but not sure which one to get.
 
Thanks

It shouldn't matter, all the tiptronic prop shaft seals are the same size. Some just come with the larger O-ring which really doesn't need to be replaced.