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40 ford front spring on rear ?

Discussion in 'The Hokey Ass Message Board' started by 40hemicpe, Jun 3, 2009.

  1. 40hemicpe
    Joined: May 12, 2007
    Posts: 965

    40hemicpe
    Member
    from anaheim.ca

    does anyone have pics of a 40 ford front spring mounted behind the rear axle on a model a frame would like to see pics of this setup.i heard it drops the car alot without haveing to do a big z in the frame :)
     
  2. 40hemicpe
    Joined: May 12, 2007
    Posts: 965

    40hemicpe
    Member
    from anaheim.ca

    bump for the night crowd
     
  3. brokenspoke
    Joined: Jul 26, 2005
    Posts: 2,877

    brokenspoke
    Member

    Its not gonna work on a model a frame..unless you lengthin the frame....model a is spring over axle
     
  4. 40hemicpe
    Joined: May 12, 2007
    Posts: 965

    40hemicpe
    Member
    from anaheim.ca

    i know that. but i wanna see how low the car will sit with that setup in the rear and the front with a 4inch dropped axle
     
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  5. The37Kid
    Joined: Apr 30, 2004
    Posts: 26,936

    The37Kid
    Member


    I've thought of the same deal, '40 spring over the a axle, and the rear crossmenderwill have to be modified as I see it. Roads are smoother today and that hump in the crossmember isn't needed.
     
  6. 40hemicpe
    Joined: May 12, 2007
    Posts: 965

    40hemicpe
    Member
    from anaheim.ca

    thanks.but i reaally need to see some pics.
     
  7. This is a 41 spring and its not under a model A but its a picture. might be of some help.
     

    Attached Files:

  8. Bass
    Joined: Jul 9, 2001
    Posts: 3,348

    Bass
    Member
    from Dallas, TX

    I used a '40 front spring on the rear of a Model A Chassis I built a few months ago. It was for a '29 Tudor Sedan...it needed to be lower in the back and still be able to keep the rear seat without a giant kick-up in the way.

    You'll need to lengthen the frame somewhere around 8 or 9 inches if I remember correctly. I also kicked the frame up slightly to get it lower. All of this fits inside the Sedan's body subrails with a little trimming. I don't have a pic of the body on the chassis, but the rear has 7.50-16 Firestones, and they are right up against the wheelwell when looking at the profile of the car. Not super low, but it looks good.

    Here's some pics of the frame...
     

    Attached Files:

  9. 40hemicpe
    Joined: May 12, 2007
    Posts: 965

    40hemicpe
    Member
    from anaheim.ca

    thanks. finally some good pics. i am building a 29 roadster and dont want the huge kick.and running 16'x6.00 in front and 16'x7.00 in rear car should sit right with this setup.
     
  10. The37Kid
    Joined: Apr 30, 2004
    Posts: 26,936

    The37Kid
    Member

    Thanks for the photos Bass! Seeing them makes total sence about the chassis being lengthened.
     
  11. Canuck
    Joined: Jan 4, 2002
    Posts: 1,037

    Canuck
    Member

    Hey Bass --
    Do you think you will need all that spring pack under the back of a A sedan?

    Canuck
     
  12. chota5
    Joined: Dec 23, 2005
    Posts: 288

    chota5
    Member
    from Nor Cal

    Can anyone provide a eye to eye measurment for the spring perch brackets for a '40 Ford spring?
     
  13. rusted_nut
    Joined: Dec 2, 2007
    Posts: 168

    rusted_nut
    Member
    from Arkansas

    Perch centers on a 40 front axle is 38 1/2"
     
  14. chota5
    Joined: Dec 23, 2005
    Posts: 288

    chota5
    Member
    from Nor Cal

  15. pasadenahotrod
    Joined: Feb 13, 2007
    Posts: 11,776

    pasadenahotrod
    Member
    from Texas

    Are you talking about the perch/axle bolt holes in the axle or the measurement from perch eye center to perch eye center on the wishbones?
     
  16. chota5
    Joined: Dec 23, 2005
    Posts: 288

    chota5
    Member
    from Nor Cal

    Yes, perch eye center to perch eye center. Can anyone provide this measurment. I'm using a '40 front spring on the rear with '36 trailing arms. Need to know how far apart to set the trailing arms.
     
  17. Beau
    Joined: Jul 2, 2009
    Posts: 1,883

    Beau
    Member

    Bump! I have searched for photos of a 39 or 40 FRONT spring mounted on the BACK of a Model A frame. Finally, I found it in the depths!

    It seems like a nice way to get a low stance with a big 'Z'

    Thanks HAMB
     

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