Tools Needed to Shorten the Demco Hydraulic Brake Line Kit for Tandem Axle Trailers

Updated 05/09/2026 | Published 05/07/2026

Products Featured in This Question

Demco Hydraulic Brake Line Kit for Tandem Axle Trailers - Drum Brakes

(1)

$100.45

Question:

I have a triple axle trailer with brakes on the forward and aft axles only. I have drum brakes. The boat weighs 5 tons. This is a 1990s trailer and the rusty lines look original so I figured Id better replace them- brake fluid is thick and color of rich coffee. From the surge master cylinder there is a 165inch run to the first T near the first axel. The brake line runs from the left side to right side of the trailer are 68inch for either axle. Looks like my runs are a bit less then what I find in your kits. For the first run I mentioned, thats 25. What would I do with the excess line in you kit? I do have a double flare kit but I havent worked with cutting and forming SS tubing. Thanks for your help.

asked by: Dean A

Expert Reply:

Hey Dean. To shorten the lines on the Demco Hydraulic Brake Line Kit for Tandem Axle Trailers item # DM5403 you'll need a tubing cutter to make a straight clean cut, a deburring tool or file to remove any burrs from the inside and outside of the cut tube, and your double flare kit.

If you do not have a tube cutter then I recommend checking with an auto parts store. Most auto parts store will allow you to rent these tools for free. You may want to look into getting a tubing bender or brake line bending pliers as well.

Do you usually launch in salt or fresh water and what kind of boat do you have?

You can add this information, along with any other questions you have, where it says Add Comment.

expert reply by: Jerred H