Newton Posted June 8, 2016 Share Posted June 8, 2016 Any write ups on swapping zj disk brakes to 8.25? don't think i saw anything in the diy section or can anyone whos done the swap before share some insight especially in reference to proportioning valves can i eliminate it or is it needed or what..i currently don't have one in the back on my mj Link to comment Share on other sites More sharing options...
88whitemanche Posted June 8, 2016 Share Posted June 8, 2016 This is one I've been following up on... http://www.cherokeeforum.com/f51/rear-zj-disc-brakes-cherokee-xj-chrysler-8-25-a-57807 Link to comment Share on other sites More sharing options...
Newton Posted June 8, 2016 Author Share Posted June 8, 2016 This is one I've been following up on... http://www.cherokeeforum.com/f51/rear-zj-disc-brakes-cherokee-xj-chrysler-8-25-a-57807 Thanks i'll check it out Link to comment Share on other sites More sharing options...
Rockfrog Posted June 9, 2016 Share Posted June 9, 2016 We have another thread discussing it here as well. But if you have questions feel free to ask away, I've got ZJ/TJ/Explorer mix rear disks on my 00 XJ's 8.25. As for the prop valve, the one at the front of the MJ is just a simple distribution block. Swap in an XJ/ZJ valve and block to eliminate the load sensing valve at the rear (which handles all the proportioning on an MJ). Otherwise, without a prop valve wet/foul weather braking can get really exciting in a panic situation. Sent from my SGH-I337M using Tapatalk Link to comment Share on other sites More sharing options...
Newton Posted June 10, 2016 Author Share Posted June 10, 2016 We have another thread discussing it here as well. But if you have questions feel free to ask away, I've got ZJ/TJ/Explorer mix rear disks on my 00 XJ's 8.25. As for the prop valve, the one at the front of the MJ is just a simple distribution block. Swap in an XJ/ZJ valve and block to eliminate the load sensing valve at the rear (which handles all the proportioning on an MJ). Otherwise, without a prop valve wet/foul weather braking can get really exciting in a panic situation. Sent from my SGH-I337M using Tapatalk so as long as i swap in the xj valve with the zj internals i can eliminate the load sensing valve in the rear?...and is the xj/zj valve a direct bolt on or do i have to make any modification to the lines? Link to comment Share on other sites More sharing options...
Rockfrog Posted June 10, 2016 Share Posted June 10, 2016 Yes. Here's how it gets setup ... This is my current XJ valve on my MJ. Remove the rear load sensing valve and plumbed the rear line straight to the flex hose from frame to axle. Sent from my SGH-I337M using Tapatalk Link to comment Share on other sites More sharing options...
Newton Posted June 10, 2016 Author Share Posted June 10, 2016 Yes. Here's how it gets setup ... This is my current XJ valve on my MJ. Remove the rear load sensing valve and plumbed the rear line straight to the flex hose from frame to axle. Sent from my SGH-I337M using Tapatalk thanks Link to comment Share on other sites More sharing options...
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