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Unread 06-30-2013, 08:45 PM   #1
BlueRubiconrich
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1986 CJ7 
 
Join Date: Oct 2009
Location: worcester, Ma
Posts: 2,053
TJ Rubicon MC on a CJ7 with powerbooster?

I have Ford 8.8 Rear Disc on my factory Dana 44 rear. With a TJ Rubicon proportioning valve. Can a bolt up the TJ rubicon master to my CJ7 brake booster?

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Rubicon Rich ,05 TJ Rubicon: PatriotJeepers.com
86 CJ7 258,T18,Scout Dana300,twin sticks,Dana44's,4W Disc, locked,35's,YORK OBA,Warn 8274,fullcage.
51 M100 1/4 ton Jeep trailer
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Unread 07-01-2013, 02:50 AM   #2
only in a jeep cj
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1986 CJ7 
 
Join Date: Jun 2001
Location: Mobile, Alabama
Posts: 4,106
While the logic is there of using a prop valve from a disc/ disc set up, I would say no even if the masters bolt pattern just happen to be the same. The reason is it is very unlikely that the masters pushrods will be the same length or need the same amount of travel. If wrong, you'd end up with brakes always partially on or a gap between the connection. Either way, the pedal action won't be right. Your sig says you have both, so some good old fashion measuring would be in order. I too have both, and while I'm not armed with numbers at the moment, I remember them being very different
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1975 CJ-6 304 T15 Dana20 30/44 3.73
1983 CJ-8 258 T5 300 30/44 3.31 Looking for full or half hardtop buy or trade
1986 CJ-7 Laredo 4.6 stroker T5 300 30/44 3.31
1986 TJ-7 Trail Jeep project in the works
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Unread 07-01-2013, 06:14 PM   #3
BlueRubiconrich
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1986 CJ7 
 
Join Date: Oct 2009
Location: worcester, Ma
Posts: 2,053
I think my issue is air in my rear lines, so I will have to wait to bleed them.
The rear bleeders were frozen so I bleed it from the lines. I was told today that will not work.
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Rubicon Rich ,05 TJ Rubicon: PatriotJeepers.com
86 CJ7 258,T18,Scout Dana300,twin sticks,Dana44's,4W Disc, locked,35's,YORK OBA,Warn 8274,fullcage.
51 M100 1/4 ton Jeep trailer
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Unread 07-02-2013, 08:06 PM   #4
BlueRubiconrich
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1986 CJ7 
 
Join Date: Oct 2009
Location: worcester, Ma
Posts: 2,053
I got one bleeder out and got a new caliper. installed everything pumped the brakes to push fluid to the rear and opened the bleeders a couple of times.
Seems beter I'll wait till a bud can come over and two man bleed the brakes.
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Rubicon Rich ,05 TJ Rubicon: PatriotJeepers.com
86 CJ7 258,T18,Scout Dana300,twin sticks,Dana44's,4W Disc, locked,35's,YORK OBA,Warn 8274,fullcage.
51 M100 1/4 ton Jeep trailer
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