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Technical early/late backing plate and drum dilemma

Discussion in 'Traditional Hot Rods' started by freeze plug, Oct 5, 2013.

  1. freeze plug
    Joined: Dec 11, 2006
    Posts: 208

    freeze plug
    Member
    from Canton, CT

    well, I am having a hard time figuring out my front brake parts

    I am using round back spindles, and backing plates that have early style shoes with the adjustable eccentric washers. I also have what I believe are late style drums.

    When I bolt everything together, they lock up. The shoes are adjusted in. the drum will spin nice and free until I tighten up the spindle nut, like maybe the shoes are interfering one the drum is fully seated

    Can I use late drums with early backing plates and shoes, or do they interfere as they are right now? I know the spindles are not an issue, I am just trying to make sense of what is going on here

    Thanks!
     
  2. dirty old man
    Joined: Feb 2, 2008
    Posts: 8,910

    dirty old man
    Member Emeritus

    Get some Play Do or similar stuff and place wads in stagic spots, reassemble and check for points of interference.
     
  3. Andy
    Joined: Nov 17, 2002
    Posts: 5,387

    Andy
    Member

    I would pull a backing plate and make sure the hub is compatible with the spindle. You may have a bearing or a hub problem.
     
  4. manyolcars
    Joined: Mar 30, 2001
    Posts: 9,595

    manyolcars

    a washer of the right thickness on the spindle before the drum and bearing might do it for you

    Andy, I appreciate some advice you gave me many years ago. Thank you!
     
  5. Si i guess the shoes are just a little to wide or the spindle is just a little to short. If i remember correctly there was one year that the spindles were a little shorter, might be a wide five thing , someone else will know.
     
  6. Rob Paul
    Joined: Nov 11, 2005
    Posts: 1,275

    Rob Paul
    Member

    What your trying to do should work fine. I've done it many times with no interference. Mabe get some other drums/ hubs to try. Post up a pic of the parts. Mabe something will stand out as being wrong or modified.
     
  7. Andy
    Joined: Nov 17, 2002
    Posts: 5,387

    Andy
    Member

    You may have gotten some Lincoln drums. They are spaced more toward the spindle.
     
  8. 19Fordy
    Joined: May 17, 2003
    Posts: 8,360

    19Fordy
    Member

    Not sure if this will help but, Is it possible that the outside raised lip of the backing plate is hitting against the bottom of the corresponding groove in the drum?
     
  9. freeze plug
    Joined: Dec 11, 2006
    Posts: 208

    freeze plug
    Member
    from Canton, CT

    thanks for the info guys, I'll pull it apart as soon as I can however I will be away until next week unfortunately

    When the setup is****embled without shoes installed, it spins just fine so I am pretty sure it is a shoe problem, not interference with the backing plate and drum/hub itself
     
  10. alchemy
    Joined: Sep 27, 2002
    Posts: 22,628

    alchemy
    Member

    Maybe the shoes are oversized, and the drums are within spec and don't need the oversize shoes. Hence the interference.

    Put a little bit of chalk on the face of the shoes, and the edges, and bolt the drum on. Try to spin it. Take it off and see where the chalk rubbed off in the drum.
     

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