Front brakes line lock - JeepForum.com
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post #1 of 25 Old 06-15-2013, 10:42 AM Thread Starter
TSEJEEPERS
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Front brakes line lock

Thinking about putting in a line lock for the front brakes.
For years I have been runnng one for the rears.
It is a simple ball valve, I cut the rear brake line, and ran it into the cab. It then goes through the ball valve, back out. Then back to the original brake line. To use it you push down on the brakes and turn the valve. This keeps the pressure in the rear brakes.
The front is a little different though as there are two lines that come out of the proportioning valve.
I have been looking at different kits out there. With those you install a solenoid, and block off one of the lines coming out of the proportiong valve. It then goes into the solenoid, back out, then you put a tee to run the lines back out to the two front calipers.
I would think this would reduce the pressure to the front brakes and I am not really happy that is is electric. If I was to forget about it it could wear the battery down.
Ok now to my question.
If I was to run the one line for the front brakes right off of the master, into the cab. Then to a ball valve, then back out to the proportioning valve, I would not loose line pressure or a need to run a electric solenoid.
Would this work?


93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
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post #2 of 25 Old 06-15-2013, 11:38 AM
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Why?

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post #3 of 25 Old 06-15-2013, 11:41 AM
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you can use 2 ball valves. Just put a truss bar between the levers so you remember to turn both.
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post #4 of 25 Old 06-15-2013, 12:01 PM Thread Starter
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Originally Posted by JeeperDon View Post
Why?
It could be usefull for many things.
I do not have a manual parking brake so I use the rear line lock for that, the front one, with the ade on the rear would hold even better.
I could also lock up just the front and be able to spin the Jeep, or throw mud at someone behind me.

93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
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post #5 of 25 Old 06-15-2013, 12:02 PM Thread Starter
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Originally Posted by Jeepsr4me View Post
you can use 2 ball valves. Just put a truss bar between the levers so you remember to turn both.
Yea I thought about that too but I would rather just run one line into the cab.

93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
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post #6 of 25 Old 06-15-2013, 07:02 PM
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Originally Posted by TSEJEEPERS View Post
It could be useful for many things.
I think 'many' is a stretch, since a gazillion other Jeepers seem fine without a 'front parking brake'. But, if that's what you want, have at it. They usually are in front on drag cars (where they actually have a line), so you may get better results Googling for drag forums (stay away from Google results about high heels in men sizes).

'93 YJ, '02 GM 4.3V6, SOA, dual ARB's, 8.8+D30(WarnHubs), 4.88s, 35" BFG KM2s, AX15, NP231+4:1+SYE+2LO, York OBA, Warn M8000.
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post #7 of 25 Old 06-15-2013, 08:02 PM
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I have thought about installing a line lock for use as a hill holding device when wheeling steep hills. Any one tried this? I would use the solenoid type designed for use in brake systems. I don't think I would use it for a parking brake in an unattended vehicle. Any pressure loss and you might be looking for a good body man, or worse a good lawyer.
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post #8 of 25 Old 06-15-2013, 08:09 PM
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I went with this on the rear drive shaft. Since it's in 4wd on hills, this gets all 4 wheels. It's also 4.88x stronger than a disc at the wheel.


'93 YJ, '02 GM 4.3V6, SOA, dual ARB's, 8.8+D30(WarnHubs), 4.88s, 35" BFG KM2s, AX15, NP231+4:1+SYE+2LO, York OBA, Warn M8000.
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post #9 of 25 Old 06-15-2013, 08:15 PM
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Originally Posted by JeeperDon View Post
I went with this on the rear drive shaft. Since it's in 4wd on hills, this gets all 4 wheels. It's also 4.88x stronger than a disc at the wheel.

looks awesome Don. Do you use it for those times when you need an extra leg to work the clutch and brake? or just for parking?
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post #10 of 25 Old 06-15-2013, 08:39 PM
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looks awesome Don. Do you use it for those times when you need an extra leg to work the clutch and brake? or just for parking?
Just parking. If you have low enough gears, you don't have brake/clutch issues. You can also old-school it and just turn the key in gear, not touch the clutch pedal.

'93 YJ, '02 GM 4.3V6, SOA, dual ARB's, 8.8+D30(WarnHubs), 4.88s, 35" BFG KM2s, AX15, NP231+4:1+SYE+2LO, York OBA, Warn M8000.
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post #11 of 25 Old 06-16-2013, 12:28 AM
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Originally Posted by JeeperDon View Post
Just parking. If you have low enough gears, you don't have brake/clutch issues. You can also old-school it and just turn the key in gear, not touch the clutch pedal.
yea my present combo is pretty hard to stall in 4lo. And I have done the launch it on the starter stunt. I was just thinking a line lock might make me look like a better driver then I am. I have experience with the electric sol type from my drag racing days.
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post #12 of 25 Old 06-16-2013, 10:09 AM
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I was just thinking a line lock might make me look like a better driver then I am.
Another idea would be to actually learn to be a better driver than you are.

'93 YJ, '02 GM 4.3V6, SOA, dual ARB's, 8.8+D30(WarnHubs), 4.88s, 35" BFG KM2s, AX15, NP231+4:1+SYE+2LO, York OBA, Warn M8000.
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post #13 of 25 Old 06-16-2013, 04:12 PM
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Quote:
Originally Posted by JeeperDon View Post
I went with this on the rear drive shaft. Since it's in 4wd on hills, this gets all 4 wheels. It's also 4.88x stronger than a disc at the wheel.

Looks like your jeep spent the night in a garage with a Land Rover

418 miles on 19 gallons of gas. Can't beat the BBD !
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post #14 of 25 Old 06-17-2013, 04:53 AM
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Originally Posted by JeeperDon View Post
Why?
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post #15 of 25 Old 06-17-2013, 06:48 AM Thread Starter
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I answered that question.
The question is, would I be able to put a line lock using the brake line before the preportioning valve or would it have to be after it?
I use my hand throttle when I am on a hill and have to use 3 feet.
JeeperDon was that a kit?
Is the caliper, cable actuated or hydrolic?

93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
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