Brake distribution block on rearend

[Bus21]

I have a 1988 Ford B600 and I need assistance with the "t" or distribution block for the rear brake lines that is on top of the axle housing. The one I got is rusted and leaks. Had to replace the 1/4" brake lines to the wheels as well. Can anyone tell me what the top female thread size is for the main line that comes from the master cylinder? I'm trying to find a replacement "t". I know the two side ones are. Thanks in advance.

[s2mikon]

Are you referring to the port that the flex hose goes in to?

[Jolly Roger bus 223]

go to your auto parts store and ask about one for your year model but as an F600/700

[Bus21]

Thank you sir!