I had the same problem this summer. it was the #4 for me.

I found a complete set of used lines. including ALL the brackets. (here in the for sale forum!!!)

It turns out I was missing a few.

replacment is your best bet. New from the dealer they were $60-$70 each!

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87' 300DT (Grey w/ red leather)
87' 300TDT (silver w/ palamino tex) SOLD

2012 VW JSW TDI (on tdiclub.com all the time "btcost")