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Technical Model A master cylinder/battery box

Discussion in 'Traditional Hot Rods' started by JB401, Feb 8, 2021.

  1. JB401
    Joined: Aug 30, 2020
    Posts: 153

    JB401
    Member

    Currently building my 29 Model A pickup and I am working on a hydraulic brake conversion. I have been eyeing the boling bros master cylinder/battery box to add to this conversion. I believe 2040 parts also has a version. They are a tad costly but seem they will help thinks go together that much easier. Anyone have any experience with either make?
    A-2001-4-ll.png
     
  2. Looks compact and clean, but.....
    Bore and stroke (volume) of the master cylinder? That may limit your choices for wheel cylinders.
    That pivot bolt looks pretty spindly... with the thread relief in the shoulder bolt taken into account, there can't be much cross sectional area for such a crucial part.
    JMO, YOMV
     
  3. @mctim64 , does your Cdan use this part?
     
  4. No. I have a Boling Bros. chassis.
     

  5. sloppy jalopies
    Joined: Jun 29, 2015
    Posts: 5,256

    sloppy jalopies
    Member

    Like seeing this, nice neat unit...
    buddy liked it, he is a jeep guy, says that is a jeep MC unit, opens you up for a larger diameter bore...
    the upper and lower clevises must be female as any twist and that lil' belcrank will crack someday
    .
    i want the option of using a booster, running a peppy 289.
    On '33-'34s i run stock [pull] pedals and a 46" long rod threaded 5/16"-24 on both ends [red]...
    set up a belcrank mounted behind the seats... added 4 mounting holes for the red rod...
    lets me change mechanical advantage as needed...
    booster [black] ... master [white]...
    no fluid fill hole in the carpet, it is in the trunk...
    has worked great on [4] of my cars, and one for a late buddy...
    my latest one for 18 years...
    i paint what doesn't show white, really helps reflect the flash light in a jam...
    .
    DSCN0602 (1).JPG
     
  6. evil clown
    Joined: Jan 15, 2006
    Posts: 283

    evil clown
    Member
    from Verona, WI

    I have a Boling Brothers setup in our ‘29 Phaeton we’re building.

    Very well built unit. Only had to drill one hole to mount it, all others lined up with existing holes.

    Running a banger with AA bellhousing and T-5 transmission. Pedals are in stock location. Everything clears, but just barely! It may not be the cheapest solution, but it solves a lot of issues all in one neat package.

    Boling Brothers told me the master cylinder is a ‘55 Ford truck unit. We’re running’40 brakes on the front & 8” Ford rears.

    Don’t have the car on the road yet, but am impressed with the quality and design. Thanks Boling Brothers!
     
  7. JB401
    Joined: Aug 30, 2020
    Posts: 153

    JB401
    Member

    Thanks for the input! All good things that I will look in to

    Thanks Sloppy, all good points. Nice looking project you have going there.

    I knew someone on here had to have it haha. Thanks for responding with your thoughts. I am leaning even more towards the purchase now.
     
  8. hardtimesainit
    Joined: Jan 24, 2009
    Posts: 625

    hardtimesainit
    Member

     
  9. Binger
    Joined: Apr 28, 2008
    Posts: 1,734

    Binger
    Member
    from wyoming

    IMG_0052.JPG

    I built one that is similar to the one pictured out of angle iron and plate. I bought a master cylinder from Napa that fits a 1966 elcamino. You could use any master cylinder as long as there is space for it. There isn’t a set up for my home built frame and banger with a T-5. What motor and transmission and frame are you running?


    Sent from my iPhone using H.A.M.B.
     
  10. JB401
    Joined: Aug 30, 2020
    Posts: 153

    JB401
    Member

    Thanks for the input hardtimes! I consider myself an amateur as well

    Nice job Binger. That looks very functional. My other option was trying to fabricate something myself but I may pull the convenience trigger on this one and save elsewhere on other portions of the build. Currently running a stock A frame, banger motor and transmission. May upgrade the trans as some point but not in phase one haha.
     
    Binger likes this.
  11. Binger
    Joined: Apr 28, 2008
    Posts: 1,734

    Binger
    Member
    from wyoming


    I understand. Cling's builds a nice master cylinder set up like that too. I believe most of the model A parts vendors carry that one or they are available on Cling's site too.

    http://www.clingsaftermarket.com/index.asp

    Good luck on your build. Post up some pictures!
     
  12. I would post your question on Fordbarn. If I remember correctly at least one manufacturer of the battery box master cylinder got too cheap and their boxes flexed a lot.

    Charlie Stephens
     
    Last edited: May 7, 2021
  13. dln1949
    Joined: Nov 30, 2012
    Posts: 149

    dln1949
    Member

    I was told by a fellow out here that Mac's Model A Parts lists a battery box/MC assembly allows you to utilize the stock pedals.
     
  14. KREATIVEKUSTOMS
    Joined: Nov 27, 2014
    Posts: 9

    KREATIVEKUSTOMS

    Thanks for the picture


    Sent from my iPhone using H.A.M.B.
     

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