so i'm trying to remove the rear axle on my 98 f150, but i want to keep the existing brakes. i can easily remove the brake line from the axle except for one part:


(my apologies for the size)

I was told that the "bolt" at the vent opening runs through the block, but on my vehicle this does not seem to be the case. if indeed they are 2 pieces, any suggestions to loosen them would be appreciated.

thanks for the help.