Okay I know those cats are messing with you but here's the slow scoop on that. they're trying to say is the shaft that you want you know doesn't go all the way through the transmission it stopped short at the front and then butts into the one that actually does come out the front. I believe what they were good in that is theirs Factory clarence's between the two that have to be pretty correct. So getting them together gets allI the tolerance is correct automatically more or less without fighting it.