[oletrucks] brake lines

[Tom Cooper <tntcoop@earthlink.net>]

Would three connections in a brake line be to many, or make the line unsafe? I 
need a line to go from the 3/16" 'T' on the rear, to the 1/4" proportion valve 
and th distance is around 77". The longest brake line I have found locally is 
60". The line also needs to reduce from 1/4 to 3/16ths. 
I have found 3 seperate pieces along with a couple unions that will do what I 
need, but I was wondering if all the connnections would be as safe as one pice 
with one union?
Thanks for any help.  
        tom