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Technical Under floor power brake problems

Discussion in 'Traditional Customs' started by 68caddydaddy, Nov 3, 2016.

  1. 68caddydaddy
    Joined: Jul 23, 2009
    Posts: 102

    68caddydaddy
    Member

    I bought a 49-54 chevy power brake pedal ***embly at speedway motors. Bolted it to the original k-meber and tried to mount the 7" booster to it. There is hardly space between the bracket and the floor. Anyone a good solution ? [​IMG]

    Sent from my GT-I9195I using The H.A.M.B. mobile app
     
    dirtcop likes this.
  2. Kerrynzl
    Joined: Jun 20, 2010
    Posts: 3,598

    Kerrynzl
    Member

    install a m/c that fits correctly [the original for example] then use a PBR VH40 or VH44 remote brake booster
    ,they can be mounted anywhere
     
  3. WZ JUNK
    Joined: Apr 20, 2001
    Posts: 1,913

    WZ JUNK
    Member
    from Neosho, MO

    Have you talked to the tech department at Speedway? I am using a similar power brake ***embly from another company, and although it is a tight fit, it clears everything and works great.

    John
     
  4. 68caddydaddy
    Joined: Jul 23, 2009
    Posts: 102

    68caddydaddy
    Member

  5. 68caddydaddy
    Joined: Jul 23, 2009
    Posts: 102

    68caddydaddy
    Member

  6. okiedokie
    Joined: Jul 5, 2005
    Posts: 4,945

    okiedokie
    Member
    from Ok

     
  7. 68caddydaddy
    Joined: Jul 23, 2009
    Posts: 102

    68caddydaddy
    Member

  8. Bearcat_V8
    Joined: Sep 21, 2011
    Posts: 400

    Bearcat_V8
    Member
    from Dexter, MI

    Attached Files:

  9. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,516

    gimpyshotrods
    ALLIANCE MEMBER

    Which, while perfectly common in the United States, might be a little harder to come by in The Netherlands.
    1478174720999-f.jpg
    I flipped the picture, to make it more clear for the casual observer.
     
    68caddydaddy likes this.
  10. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,516

    gimpyshotrods
    ALLIANCE MEMBER

    I have had to do a little "gentle hammering" to make a little dimple in the floor for some of these.

    It sometimes depends on the condition of the cab mounts. If they have deteriorated, the cab will be closer to the frame than with fresh ones. Your cab does not look rusty, so it is unlikely you have metal collapse.

    Look for a picture of them on the internet, and compare what the cab mounts look like to what you have, and see if they are failing.
     
    Atwater Mike likes this.
  11. 68caddydaddy
    Joined: Jul 23, 2009
    Posts: 102

    68caddydaddy
    Member

    Single or dual diaphragm booster ? De dual is longer and can give some clearance to structure underneath the floor ....

    Sent from my GT-I9195I using The H.A.M.B. mobile app
     
  12. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,516

    gimpyshotrods
    ALLIANCE MEMBER

    I think the ones that I installed were single. They were shallow.
     
  13. Karl Schofield
    Joined: Mar 7, 2016
    Posts: 83

    Karl Schofield
    Member

  14. Rusty O'Toole
    Joined: Sep 17, 2006
    Posts: 9,756

    Rusty O'Toole
    Member

    Some early fifties cars had power brake boosters under the floor, and a bulge in the floor to fit them. If the bulge is under the seat no one will ever see it.
     
  15. 68caddydaddy
    Joined: Jul 23, 2009
    Posts: 102

    68caddydaddy
    Member

    turboroadster likes this.
  16. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,516

    gimpyshotrods
    ALLIANCE MEMBER

    They make excellent products.
     
  17. Mike VV
    Joined: Sep 28, 2010
    Posts: 3,329

    Mike VV
    Member
    from SoCal

    You do not need a booster..!
    If you get the correct master cylinder piston diameter for the calipers, calipers/drums used, a booster is NOT needed.

    How do I know this, I've done it to two different cars, with different 4 wheel disc components...and no booster on either car The brakes work great...
    Just takes a little homework on matching piston sizes...not that difficult. The information is in many brake books, it's not a secret.

    Mike
     
    Tman, desotot and 68caddydaddy like this.
  18. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,516

    gimpyshotrods
    ALLIANCE MEMBER

    Maybe he wants a booster.
     
    68caddydaddy likes this.
  19. Lmao !
    One main reason I **** around with a booster ,,,
    Manual brakes work just fine but because of the pedal ratio the foot pad rides higher than with power brakes. Depending on the situation, ergonomics and cramped up foot space that can be a real ***** in stop and go daily driving and down right dangerous in the emergency stuff.
     
  20. Mike VV
    Joined: Sep 28, 2010
    Posts: 3,329

    Mike VV
    Member
    from SoCal

    WANTS...a booster...that's funny..!


    31V -
    My third car to go without a booster has short pedals like you allude to. Just a different/correct pedal ratio needs to be setup to get the mechanical advantage. Doesn't "need" long pedal arms.

    Mike
     
    desotot likes this.
  21. Draw it up and show me.
    I wanna learn something really cool
     
  22. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,516

    gimpyshotrods
    ALLIANCE MEMBER

    Me too!
     
  23. desotot
    Joined: Jan 29, 2008
    Posts: 2,037

    desotot
    Member

    Mike VV, I don't run boosters either, and use disc brakes. It can be made to work well. Booster are like warts.
     
  24. heritic88
    Joined: Sep 7, 2008
    Posts: 116

    heritic88
    Member

    I did the same thing when I first bought my car I ended up adding about a foot and z-ing the bracket to get it to fit and not sit below the frame rail. I have been running that for about 7 years with no problem.


    If at first you don't succeed get a bigger hammer, and if then you don't succeed, get a beer.
     
  25. I'm still waiting, idk about gimpy but I'm still looking for the magic
     
  26. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,516

    gimpyshotrods
    ALLIANCE MEMBER

    Oh, I'm waitin'.
     

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