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8.25 disc

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Old Nov 18, 2016 | 12:14 PM
  #1  
fannitti's Avatar
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Default 8.25 disc

gonna swap disc on the 8.25 that's going in my 89 xj. do I need to change the master cyl or car I get away with just the proportioning valve set up from a zj I think it is?
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Old Nov 18, 2016 | 01:42 PM
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From: St. Albert
Year: 1989
Model: Cherokee
Engine: 4.0L I6
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Originally Posted by fannitti
gonna swap disc on the 8.25 that's going in my 89 xj. do I need to change the master cyl or car I get away with just the proportioning valve set up from a zj I think it is?
Just the guts of the prop. valve from the ZJ you pulled the brakes off of.
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Old Nov 18, 2016 | 02:32 PM
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From: spokane valley, wa
Year: 1993
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When I did my disc swap, I tried it with out the prop valve first and never saw a need to change it. So, I'm still running the factory prop valve but my xj is strictly off road so road manners don't matter to me. I think that the biggest issue with not swapping it is that it becomes easier to lock up the rear brakes, especially on wet roads.
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Old Nov 18, 2016 | 06:18 PM
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In my 98 the brakes seemed good enough & I didn't swap out the guts.
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Old Nov 18, 2016 | 11:07 PM
  #5  
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I'll do the disc swap and see how it is because I still have the stock master that's a single diaphragm
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Old Nov 19, 2016 | 09:40 AM
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Default kj brake swap

I just finished doing the Liberty rear brake swap. It was a bolt on. No modifications at all. Just went to the JY and pulled the rear backing plates (with e-brake cables still attached) and calipers. Mine were from a 2007 Liberty. I decided to purchase new rotors and brake pads. Ended up costing about $200 total. Here is the link to the write up.
https://www.cherokeeforum.com/f51/li...nversion-7695/
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Old Nov 19, 2016 | 04:50 PM
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I ran mine without the prop valve guts and then with.

I like it better with.
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Old Aug 30, 2017 | 08:27 PM
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I did this project a couple weeks ago and couldnt be happier.the install was fairly easy and only took about hour and a half. I found my parts from a guy on ebay they were decent priced and great parts. Think i paid aroun 170 for the parts.Just checked ebay and he is still selling them.
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Old Aug 31, 2017 | 11:02 AM
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Year: 1998
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Diggxj, can you share the Ebay sellers name you used? Thanks!
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Old Aug 31, 2017 | 05:24 PM
  #10  
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Originally Posted by Jeepzilla380!
Diggxj, can you share the Ebay sellers name you used? Thanks!


Contact Big David here on Cherokee Forum.

https://www.cherokeeforum.com/members/big-david-40463/
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Old Aug 31, 2017 | 06:32 PM
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X2
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Old Aug 31, 2017 | 08:51 PM
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I appreciate it. Thank you.
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