hello all I just swapped out my transmission on my 2001 3.8l grand prix and replaced both half shafts problem is I had to also swap out the out put shaft because for some reason the used trans I bought had different splines on either side now it looks like while I'm driving trans fluid is just spraying out from where the half shaft goes is there a seal that I might have missed when putting it back together? any help would be appreciated thano you