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Found 6 results

  1. Hey guys, If it's needed: 1989 with old Renix 4.0 - stock dana 35 I am trying to do a WJ master cylinder / brake booster swap since the old one was rusted out with a leaky booster. In the process of installing it I accidentally crushed the proportioning valve when putting the lines in so I have to replace it. I have put two new proportioning valves in but it leaks from the same two each time I thought I tightened it down without pushing the line in first so I put another in and clearly that wasn't the issue. I bought an XJ proportioning valve and will not be
  2. So I've done a good bit of research and can't seem to find what swapping in a ZJ proportioning valve will look like. My plan is to swap to a '96 booster and MC from a ZJ, swap in a ford 8.8 (rear disc), and use the proportioning valve from the ZJ to delete the factory load sensing valve. Any info on the p-valve fitting sizes and line work that would need to be done would be great! Thanks in advance!
  3. Hello All, So I'm new here but have been lurking and finding good info here since I picked up my first Comanche in Aug 2017, finally got round to creating a profile... I have some questions about the Comanche braking system, I've been reading posts on this forum on this topic as I'm getting ready to lift and axle swap to make sure I'm covering my bases and this one got my attention: https://comancheclub.com/topic/40762-mj-brake-proportioning-valve/ There is a good picture of the MJ distribution block cut in half in the linked thread: My question is why i
  4. I could use some help. I did the WJ brake booster upgrade, but I had a leak at the back of the distribution block. Fluid was coming up out of the top of the rear fitting. Pulled everything out again, took a new set of lines to my mechanic--thinking maybe my lack of experience in making double flares was the problem--and put everything back in. Today I went out to bleed the brakes and finish the job when I noticed that fluid was already coming out of the rear fitting again, without ever having depressed the brake pedal. The line is new again and the brake line fitting is new again. Coul
  5. I recently finished doing an 8.8 SOA swap in my 1991 Jeep comanche Pioneer 4.0 manual. I need to do something about the brakes because they are seriously lacking in stopping power. Currently all I have done is eliminated the rear proportioning valve. I am going to swap in a 95/96 XJ brake booster, master cylinder and proportioning valve. My question is seeing that the 8.8 has disc brakes do I need to find a brake booster, master cylinder and prop valve from a donor vehicle that also has disk brakes or will a donor with drums work? What would be the best set up to keep the rears from lock
  6. Hi Guys, I'm sure that there's already a post for this, but I couldn't find it.. But Anyways, I've seen pictures, and home made diagrams on how to delete it, but no detailed write ups, or pics.. :???: Any help would be greatly appreciated Thanks!
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