As for BEBs.. I went to toyota and nearly cried at the price and they gave me prices for different sizes. Anyone know more about this size wise? Also stuff doing that myself, was cleaning the underneath and not so keen on getting in about all that metal!
I think the sizes are stamped on the journals when you dismantle, or maybe on the shells themselves. When dismantling, I would suggest that you take care to set out the shells as you remove them to keep track of what came from where.
But as said, there's plenty of posts on replacing BEBs on this forum. Have a search and read.