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Old 05-15-2011, 08:01 PM   #1
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When do you extend brake lines

At what lift do you extend the lines?

Based on tire size with lift? and disco'ing?

Just dont wanna rip the factory ones out

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Old 05-15-2011, 08:08 PM   #2
Knows a couple things...

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Few standard height lifts, even 4", are flexible enough with their front axles disconnected that you need longer brake lines. The way to know how much brake line length is left on yours is to jack your Jeep up from the front frame and let the front suspension droop until it completely bottoms out. Then jack up one side of the axle which will push the other side further down, then look at your brake line on the low side and see how much brake line length is left. Do the same thing to the other side and see how its brake line length is. The usual limit to how much the axle can droop is the shock absorber, though the track bar and control arms can also limit droop.

No worries on the rear brake line, it follows the upper control arm down to the axle where it splits left/right and doesn't need to be extended with even very tall suspension lifts.

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Old 05-15-2011, 08:13 PM   #3
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Jerry's post is a great way to check the limits of your brake lines. Always put safty first if you think they may need to be changed, change them.
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Old 05-16-2011, 12:16 PM   #4
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Quote:
Originally Posted by Mortalis5509 View Post
At what lift do you extend the lines?

Based on tire size with lift? and disco'ing?

Just dont wanna rip the factory ones out
brake line extension is mostly related to shock length.

jack the jeep up, support from the frame, drop the axles to full droop, turn the steering all the way to one side. now look at the brake lines, if one side is tight & has no slack, you need longer brake lines. use a string to estimate the length. pretty simple
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