Register now to get rid of these ads!

1940 Ford Banjo rear spring mount issue

Discussion in 'The Hokey Ass Message Board' started by r1h2, Aug 24, 2012.

  1. r1h2
    Joined: Aug 18, 2012
    Posts: 4

    r1h2
    Member
    from Winona MN

    I am rebuilding a 1940 Ford banjo rear axle. The spring mounts which are attached to the ends of the axle housings are pulled towards each other so that the mounting holes for the shackles are not parallel. Has anyone come across this condition before?
     
  2. i've never seen that on a `40 rear end , they are forged steel and rather beefy so i can't imagine how that happened

    any pictures?
     
  3. alchemy
    Joined: Sep 27, 2002
    Posts: 16,459

    alchemy
    ALLIANCE MEMBER

    Maybe somebody modified it to fit a 32-34 spring? Or maybe you really have a 32-34 rearend?
     
  4. r1h2
    Joined: Aug 18, 2012
    Posts: 4

    r1h2
    Member
    from Winona MN

    Attached are a right and left side pictures. I was sent an article which gave a dimension of 48-1/2" on the spring mount width; which is what I measure to the outside of the shackle bosses. They seem to both be tipped in equally.
     

    Attached Files:


  5. flat 39
    Joined: Dec 31, 2007
    Posts: 236

    flat 39
    Member

    It is hard to tell from the pic, but if you rotate the housing so the brake backing plate holes are level does that straighten the spring mounts?
     
  6. r1h2
    Joined: Aug 18, 2012
    Posts: 4

    r1h2
    Member
    from Winona MN

    The shackle mount bores are not parallel to each other.
     
  7. alchemy
    Joined: Sep 27, 2002
    Posts: 16,459

    alchemy
    ALLIANCE MEMBER

    Can't tell if they were bent on purpose (no signs of heating with all that rust), but something was changed somewhere in it's life. You'll need to straighten them out. A bit of heat and pressure on the hanger should do it.
     
  8. 40FordGuy
    Joined: Mar 24, 2008
    Posts: 2,907

    40FordGuy
    Member

    Ditto, what alchemy said. Apply the heat with finesse...use only as much as needed. Someone modified those in some past life, for whatever reason.

    4TTRUK
     
  9. alchemy
    Joined: Sep 27, 2002
    Posts: 16,459

    alchemy
    ALLIANCE MEMBER

    Just was thinking about this more and realized, those hangers are bent the wrong way for a '32 spring. I really wonder what the purpose of bending them was?
     
  10. Mooseandsqurl53
    Joined: Jun 6, 2007
    Posts: 255

    Mooseandsqurl53
    Member
    from N.J.

    Did YOU take the rear out of the car or has it been out for a long time? I just put the rear back in my Model A and nothing looked like it was going to line up until I had the spring spread to the point where the shackles were put in almost by hand. Everything lined up perfectly then. The pics aren't showing us much. If you can find someone with a stock '40, ask them if you can take a look at their springs and mounts.
     
  11. r1h2
    Joined: Aug 18, 2012
    Posts: 4

    r1h2
    Member
    from Winona MN

    Alchemy, 40Fordguy,

    Heat and tweek back to parallel will be the plan.
    It would make more sense if the 48-1/2" dimension was between the shackle bore centers.
    Thanks to all who responded.
     
  12. HotRod-1
    Joined: Jan 17, 2011
    Posts: 20

    HotRod-1
    ALLIANCE MEMBER

    Hello,
    Was wondering if you had worked out this problem? I am rebuilding the rear axle assembly from a 41 Ford 1/2 ton pickup and am experiencing the same problem. I didn't notice the shackle mount being bowed in when I removed the spring and disassembled the axle assembly, but now that I have the axle assembly back together, the bow-in is quite noticeable.
    Does any one have a comment?
    HotRod-1
     
  13. Bruce Lancaster
    Joined: Oct 9, 2001
    Posts: 21,682

    Bruce Lancaster
    Member Emeritus

    Possibly a well rusted shackle or a new repro shackle with oversize shell came together with an idiot and a big hammer....
    A GOOD spring spreader, like an OTC or Snap-on, might be a way to apply some remedial force.
     
  14. Andy
    Joined: Nov 17, 2002
    Posts: 4,679

    Andy
    Member

    Maybe someone was trying to install the rear in an earlier car that used a narrower spring. Wasn't the 41 or 42 spring an odd length?
     
  15. oldrelics
    Joined: Apr 7, 2008
    Posts: 1,727

    oldrelics
    Member
    from Calgary

    Mine were tweaked too. I wrapped water soaked rags around the bearing surfaces so I wouldn't damage them, then heated and bent them back. A O K!
     
  16. butch27
    Joined: Dec 10, 2004
    Posts: 2,839

    butch27
    Member

    I just had one bent on the left. Heat an bend.
     
  17. tuleyoil
    Joined: Oct 30, 2013
    Posts: 4

    tuleyoil
    Member
    from london

    Attached are a right and left side pictures.[​IMG]
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.