Hey guys,
I recently acquired an 85 F250 with the 7.5l 460 gas engine, and the brakes have been a little squishy. After checking and cleaning all the brakes, I went to bleed the brake lines and discovered a small brake fluid leak from a part that I can’t identify. I couldn’t find a comprehensive diagram of the brake lines online, but the part in question is connected to the rear axle vent tube. I had trouble bleeding the rear brakes (even after inspecting and cleaning the bleeder valves - which looked great), but the front brakes bled beautifully. I was wondering if this leaking component could be the cause before I investigate the possibility of a blockage or leak elsewhere. If this is the source of the problem, I would like to know what it’s called so I can fix or replace it.

Thanks in advance for your response!

 

I can see the supply line that comes to the fitting on the banjo housing and branches off to each rear wheel cylinder. Then there is a hose? that goes to the leaking object.
Where does the other steel line on the top of the object go to? Can you see that?