Coverting to power brakes - JeepForum.com
 
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post #1 of 5 Old 04-19-2013, 08:34 AM Thread Starter
RoytheBoy
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1986 CJ7 
 
Join Date: Oct 2012
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Coverting to power brakes

I'm seriously considering updating my 1986 CJ 7 to power brakes by adding a booster , either single or dual diaphragm. My question is, will the existing master cylinder work with a booster or will I have to swap it out. Its fairly new so its a bit of a waste to toss it.

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post #2 of 5 Old 04-19-2013, 05:51 PM
John N
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1981 CJ8 
 
Join Date: Oct 2003
Location: Rockville, Va
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Swap it to one that's properly matched to the booster. I used the duel diaphram Navaho from Off Again Offroad; it works great, bolt-in set-up.

'81 Scrambler w/ FI 360 AMC, 33x12.50 BFG M/T's, 5" of lift, ARB'd Dana 44's F & R, Dana 300 clocked & twin sticked w/4:1, Warn XD9000i, etc...
2002 Grand Cherokee Limited, 2008 Overland Grand Cherokee, a 1976 CJ-7 in pieces and 3 more off-brand 4x4s...............
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post #3 of 5 Old 04-20-2013, 03:57 AM
gojeepin
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1983 CJ7 
 
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Quote:
Originally Posted by RoytheBoy View Post
I'm seriously considering updating my 1986 CJ 7 to power brakes by adding a booster , either single or dual diaphragm. My question is, will the existing master cylinder work with a booster...
No. They're different.

Vibration? Bump steer? Wandering? Read the article (sticky) on Steering, suspension, and driveline.
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post #4 of 5 Old 04-20-2013, 09:14 AM
hmantractors
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2004 KJ Liberty 
 
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Power brakes

You will have to change your master cylinder as they are different. There is a machined shaft that is about 1 to 1.5 inches long that goes into the end of the master cylinder plunger.
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post #5 of 5 Old 04-20-2013, 10:45 AM
CJput
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1977 CJ7 
 
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