what trans
 

I have a 65 fb 4spd. How do I know if it has the top-loader trans or the borg-warner trans?

I am not completely sure but I think you can look at the access pannels on the trany. If there are pannels on the side, it is a t-10. If from the top (top loader) then you have a top loader. Like I say, I think this is right, but not completely sure.