On my 84 what is the length of of the steel brake line that goes from the passenger wheel to just left of the differential?

 

front? rear? but long and cut it down. very easy.

 

Make sure you've got plenty of different sizes of the tubing nuts. Ford liked to use a bunch of different sizes regardless of the line size. Good luck with it!

 

Rear brakes

 

the rear is 3/32" line.... but like they have already stated the ends can varry a bit... in some cases it can be 1/4" ..... i recently did mine as Les Schwab screwed up and didint put in all the parts and I had no brakes on the pass side ... a year and a half later i hads to punch the breaks... blew the cyl out.... had to pinch off line to make it home... mine was 3/32" line... on my 87 F-250(factory 6.9 auto).