hey I have a 2004 ford f150 lariat. My brakes went on me last night luckily I was off the highway. tow truck driver was really helpful and pointed me in the right direction as to what was wrong and showed me what had happened and where. Its the hard line to rear drivers side, the break is just above the drivers from wheel. so I need to replace from the expansion block to the union half way along the body. Any help finding the part number would be great.

 

Have you thought about a junk yard? Also, would it be possible to repair it by putting a union at the break?