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dual mc

Discussion in 'Early CJ5 and CJ6 Tech' started by jim warren, Feb 14, 2013.

  1. jim warren

    jim warren Member

    As soon as the weather gets warmer, I would like to finish up my 11" brake upgrade on my 57 cj5. I already did the front axle and what a difference. I am thinking the while the system is dry, I should upgrade to a dual master cylinder. The Herm kit looks like the best option. There has been so much back and forth, in past forum discussions, on the degree of difficulty, I am not sure what I am in for. I am looking for some input before I do it. I know one thing, I should have done it while the body was off.
     
  2. nickmil

    nickmil In mothballs.

    R&P just finished prototyping a conversion that may be ready to sell. Looking at the prototype it looks to be a much easier install. Might give them a call at 503-557-8911. I think they just sent one to Australia for a right hand drive Jeep also......


    Sent from my iPhone
     
  3. Uncle Vin

    Uncle Vin Member 2022 Sponsor

    Who is "R&P"?
     
  4. Uncle Vin

    Uncle Vin Member 2022 Sponsor

    Forget it. I figured it out.
     
  5. Rob C

    Rob C Member

    I did Herm's conversion while I had the body off the frame. Easy to install but would recommend that you get his banjo fitting kit too. Makes attaching the brake lines much easier due to limited space.

    Straight forward install. The only thing that gave me fits was the pushrod. The stock one would not work. Made a new one out of a Wilwood pushrod and a rod end. Getting the length right was tricky. I first had it too long so it had slight pressure on the MC which made the front brakes inop. Slight adjustments make a big difference in pedal height and feel. Lots of trial and error for me.

    Hope this helps. Good luck.

    Rob
     
  6. 1970CJ6

    1970CJ6 new mexico air

    PM sent with pictures

    Andrew
     
  7. :pPic of said prototype. I got to install it on Friday, 4 holes in the frame, bend some new brake lines and find a place on the firewall to mount the remote res.. Since you don't have to cut out the factory MC bracket, its pretty easy to slap in on the grage floor, or to take it back to stock down the road.[​IMG]
     
  8. jim warren

    jim warren Member

    How did the pushrod line up? That seems to be the biggest problem when doing the job
     
  9. Straight shot. The bracket is slotted to allow the MC to be moved in/outboard to line up with the included pushrod. Picture shows pushrod without boot on MC.
    [​IMG]
     
    Last edited: Feb 17, 2013
  10. jim warren

    jim warren Member

    Spoke with very nice person at R and P about the unit. It should be available in the next few weeks.He assured me that there will be no push rod issues. I think I will be taking the plunge and buy one. Stay tuned . I will keep you all updated.
     
  11. SIDSCJ

    SIDSCJ Jeep addict

    Now that looks like "dual master cylinders"!!;)
    Any idea on $$$?
    Looks like the way to go, I can assume it comes with the pedal bracket too?
     
  12. jim warren

    jim warren Member

    They told me it comes complete. Supposedly nothing needs to be cut off. It also includes a remote fill.
     
  13. compostwerks

    compostwerks Sponsor

    Jim, any light you could shed on the price? Usual shoe string budget here....Pete
     
  14. compostwerks

    compostwerks Sponsor

    What are the two studs with nuts sticking out towards the bell housing? Are the brake lines attached there?
     
  15. cjdrive

    cjdrive Member

    Seems like we are avoiding the cost. Any ideas?
     
  16. Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Hey- they're using the same Willwood cylinder I am- :)

    [​IMG]

    [​IMG]

    Why you ask?

    I didn't want to cut up the stock MC mount in case someone want to put it back to stock someday, plus I derive a perverse pleasure from finding different ways of doing something :twistedl:

    H.
     
    Last edited: Feb 19, 2013
    Danefraz likes this.
  17. garage gnome

    garage gnome ECJ5 welder

    Does yourss have remote reservoirs Howard? The thing I like about Herms is, it makes it look stock because you can't see the remote reservoirs. I wish I had thought of that Howard. I did save my stock MC plate from when I did mine.
     
  18. Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Last edited: Feb 19, 2013
  19. Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    The remotes came with it but I don't like them (plastc :mad:). I'm fabbing up something a bit "jeepier", I've already replaced the plastic fittings on the cylinder itself with aluminum caps threaded for hose fittings.

    H.
     
  20. garage gnome

    garage gnome ECJ5 welder

    OK, thanks for the info. I'm happy with mine and no plastic ones. If yours wasn't restored, I would suggest your favorite beer can. :D