95 yj brakes on 85 cj fittings - JeepForum.com
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Unread 03-04-2013, 09:54 AM   #1
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1985 CJ7 
Join Date: Jul 2011
Location: Texarkana, AR
Posts: 7
95 yj brakes on 85 cj fittings

I Need help with the fittings to connect the stock brake lines and fittings to the '95 YJ master cylinder. Apparently the '95 YJ master cylinder is metric thread. Are there any adapters out there for this connection? I know this is a popular upgrade but I can't seem to find the information on these adapters. The 7912 and 7917 Weatherhead adapters only work on pre-95 YJ's.

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Unread 03-05-2013, 01:42 PM   #2
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1986 CJ7 
Join Date: Oct 2010
Location: Edinburg, TX
Posts: 44
When I upgraded my CJ7 to YJ brake booster and MC it came with the original fittings. I notice that the rear brake lines were the same size so I used the same fitting by using a flaring tool. The front lines I got the adapter from autozone. I took in my MC and they found the adapter I needed.
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Unread 03-05-2013, 07:56 PM   #3
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1981 CJ7 
Join Date: Aug 2011
Location: reedsport, or
Posts: 65
I am in the same boat and would like to know also. If I find them I'll post up the numbers.
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Unread 03-05-2013, 07:57 PM   #4
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1978 CJ7 
Join Date: Jun 2011
Location: , Pa
Posts: 4,080
I'm not sure of the year my YJ MC is from, but I did like k-linx did and took my MC in with me. They hooked me up with the right fittings.
78 CJ7.. 258.. TH400/Dana18.. SOA/stock YJ springs.. 35" General Grabbers.. Waggy 44s.. 4.88 gears...Spartan/Lockright...Fiberglass front to rear
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Unread 03-06-2013, 12:27 AM   #5
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1977 CJ5 
Join Date: May 2008
Location: Locust Grove, GA
Posts: 1,465
The CJ hard lines (1/2-20 and 9/16-18 standard fittings) into the 1995 YJ master cylinder (m10x1 and m12x1 metric) inputs.

Napa should be able to help you find the adapters needed.
'77 CJ-5 Renegade 304 / T-150, Dana 20, 30/20 axles, Aussie Locker in the Dana 30, American Racing 15x10 Outlaw II's, 33" Dynapro M/T's" ,Optima Battery, TeamRushed + Summit Racing CDI ignition, FlowKooler water pump, Edelbrock Performer Intake Manifold, Holley 4160 390cfm, Herculiner, Silver Ceramic Coated Hedman Hedders, Flowmaster 40's.
Warn PowerPlant HD 12K Winch, Dirtworx front and rear bumpers.
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