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  • YJ Brake Booster and Master Cylinder

    Will a YJ's brake booster and master cylinder bolt straight up on the CJ without any mods? And is this a good conversion? If so, what year? And a YJ is basically a 87-94 Wrangler right?

  • #2
    http://www.desertcj7.com/yj_brake_booster_upgrade.htm

    Rich

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    • #3
      Great write-up. I hope to avoid some of the issues he had with the YJ pedal assembly, instead of using the stock cj set up.

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      • #4
        So here's what I found- I ended up using the clutch pedal off the wrangler and put it on the CJ pedal assembly (its held in by a snapring). I found that the mounting points are different for a second bracket to firewall and the column mounts further back. I'm gonna try this and I'll let you know how it works. I think the only other mod is to cut a hole in the firewall for the clutch master. Sorry for the confusion- someone else told me this is a direct bolt in.......

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        • #5
          So, here's what I did- for sake of costs, I used the YJ/wrangler (1989) stock booster/master set up and plumbed in the stock cj prop valve. I then used a hole saw for the clutch master on the firewall (had to fill a hole thats about 7/8" first) then drilled the mounting holes, made a clutch line and everything works great. I did have to shim the clutch pedal from the yj set up to keep it from slopping around (there should be a 2 bolt bracket that comes off the clutch pedal and bolts through the firewall as well). The master cyl depends on what you're running for rear brakes? Disc or drum? The booster set up alone is a definite upgrade. Hope this helps

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