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Technical Bolt on/weld on spring perches?

Discussion in 'Traditional Hot Rods' started by ‘28 RPU, May 4, 2024.

  1. ‘28 RPU
    Joined: Feb 11, 2022
    Posts: 236

    ‘28 RPU

    I am installing an 8” in my Model A. And so need to deal with the spring perches. I know that there are both weld on and bolt on ones available but I can’t seem to locate any. Suggestions?
     
  2. 1biggun
    Joined: Nov 13, 2019
    Posts: 558

    1biggun

  3. 1biggun
    Joined: Nov 13, 2019
    Posts: 558

    1biggun

    sko_ford likes this.
  4. 1biggun
    Joined: Nov 13, 2019
    Posts: 558

    1biggun

  5. krylon32
    Joined: Jan 29, 2006
    Posts: 9,857

    krylon32
    ALLIANCE MEMBER
    from Nebraska
    1. Central Nebraska H.A.M.B.

    Also Check Pete & Jake's
     
    fastcar1953 and gary macdonald like this.
  6. ydopen
    Joined: Mar 14, 2010
    Posts: 237

    ydopen
    Member

    I cut the perches off model A and welded on 39 rear end.


    John
     
  7. Tim
    Joined: Mar 2, 2001
    Posts: 18,171

    Tim
    Member
    from KCMO

    Might want to grab a tape measure and make sure that 8” is wide enough for the main leaf want to use. A lot of them are too narrow
     
    RICH B likes this.
  8. Andy
    Joined: Nov 17, 2002
    Posts: 5,224

    Andy
    Member

    From another HAMB thread IMG_1185.jpeg IMG_1184.jpeg
     
    sko_ford and Speccie like this.
  9. ‘28 RPU
    Joined: Feb 11, 2022
    Posts: 236

    ‘28 RPU

    Tim, this whole swap thing was not planned and there seems to be one PITA/$$ problem after another. I am aware of the spring width and although not cheap, I think the best answer will be to have a main leaf custom made to fit. Although off the top of my head I can’t remember the name but there is somebody who does that for a reasonable cost. I should only need a main leaf, I think I can still use the rest of the spring pack. I would like to be able to mount the spring on the back of the axle like the V8’s do but that would require relocating the crossmember and that would require adding on to the back end of the frame. It never ends………
     
  10. ‘28 RPU
    Joined: Feb 11, 2022
    Posts: 236

    ‘28 RPU

    Thanks for the chart Andy. I’m going to go over to where the 8” currently resides and put a tape on it so that I KNOW what I’m dealing with and not just guessing (guessing rarely ends well, at least for me LoL).
     
  11. Tim
    Joined: Mar 2, 2001
    Posts: 18,171

    Tim
    Member
    from KCMO

    Mill works has the narrowed spring but best I can tell only sell full packs
     
    Nailhead Jason likes this.
  12. Andy
    Joined: Nov 17, 2002
    Posts: 5,224

    Andy
    Member

    I measured my Maverick rear end. It is 49.5 in backing plate to backing plate. It is the narrowest of the bunch.
    Here is another chart from the HAMB
    56.5 minus 49.5 is 7" The 10 in drums assys are 3.5 in in width?
    IMG_1195.jpeg
     
  13. 1biggun
    Joined: Nov 13, 2019
    Posts: 558

    1biggun


    I recall I ran into issues as I recall with not enough width for the spring I had on my early bronco 9" as well .
     
  14. ‘28 RPU
    Joined: Feb 11, 2022
    Posts: 236

    ‘28 RPU

    Andy, mine is also a Maverick a when I measured it yesterday I came up with the same thing. This is only a guesstimate but I think the max spacing between perches would be about 45” allowing for brake bleeding and the space required by the perch itself.
     
  15. ‘28 RPU
    Joined: Feb 11, 2022
    Posts: 236

    ‘28 RPU

    I seem to recall that there is a guy that does Model A springs and will sell a main leaf only but I cannot remember his name. Speedway offers a “medium arch” spring that is 38” eye to eye (at least that’s what their website says) it does not say anything about it intended for a narrower than stock application however so I think that might be a typo.
     
  16. ‘28 RPU
    Joined: Feb 11, 2022
    Posts: 236

    ‘28 RPU

    I believe that he goes by the very basic “A Springs” (Travis Cook). Unfortunately I have not been able to call him due to “all circuits are busy at this time” for the last hour.
     
  17. Is A Springs still around? He used to have a website but I can't find any online presence for him anymore.
     
  18. ydopen
    Joined: Mar 14, 2010
    Posts: 237

    ydopen
    Member

    He is no longer in business.

    John
     
  19. ‘28 RPU
    Joined: Feb 11, 2022
    Posts: 236

    ‘28 RPU

    Back to the drawing board
     
  20. D2Denny
    Joined: Jan 17, 2012
    Posts: 77

    D2Denny
    Member

    Made my own out of 7/16 plate and tubing. Welded them on today using a jig I made up to get the correct angle and spacing. Am using the Speedway 38" medium arch rear spring. Instructions that came with the spring said to mount the spring hangers with the eyes 45" apart. Spring was fairly reasonable at $136.00
    Banjo 4.jpeg
     
    Andy likes this.
  21. DocWatson
    Joined: Mar 24, 2006
    Posts: 10,288

    DocWatson
    ALLIANCE MEMBER

    Check out these on an Australian facebook page (You may have to join the page) These would b perfect.
    Facebook
     
  22. ‘28 RPU
    Joined: Feb 11, 2022
    Posts: 236

    ‘28 RPU

    Good info Denny
     

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