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Hot Rods Too far out of the box? Underslung Traverse Leaf Rear

Discussion in 'The Hokey Ass Message Board' started by hammeredt, Aug 27, 2019.

  1. hammeredt
    Joined: Mar 3, 2006
    Posts: 433

    hammeredt

    This is the type of thinking that has caused this project to take such a slow path. I am always looking for unique ideas and trying to avoid the mundane (ie. safe, tried-and-true, etc.). Maybe it is unconscious self-sabotage, maybe I am a genius, maybe somewhere in between.

    Any informed opinions on the failures of this mocked up setup?
    Other details of the idea:
    Yes, the banjo will face forward.
    Closed drivetrain with very shorted TT.
    I know I will need to solve for X, when X = radius rods.
    Adjustable spring perch mounted on the tubular cross member.

    Car will be very low, body channeled, some type of fenders, sports rod/ special theme.


    IMG_20190827_111145.jpg MVIMG_20190827_111409.jpg IMG_20190827_111137.jpg
     
    Last edited: Aug 27, 2019
  2. Pictures aren't working...
     
  3. hammeredt
    Joined: Mar 3, 2006
    Posts: 433

    hammeredt

    Should be fixed. Thanks.
     
  4. 62rebel
    Joined: Sep 1, 2008
    Posts: 3,233

    62rebel
    Member

    I've seen it done like that before, it's not too far out by any means.
     
  5. alchemy
    Joined: Sep 27, 2002
    Posts: 22,182

    alchemy
    Member

    If the spring gets a bit too wide for the perches and flattens out, it will hit the perch. Put the perches on the bottom of the axles and the spring can't hit them. Otherwise, it seems like it could work fine. I'd recommend that since the TT will be rather short, you make sure your driveshaft angle at ride height isn't too extreme.
     
  6. Bob Gregorie flipped the rear of the frame for Edsel's Model 40 Speedster- here's what it looked like:

    [​IMG]
     
    Hnstray, 62rebel and dana barlow like this.
  7. el Scotto
    Joined: Mar 3, 2004
    Posts: 4,720

    el Scotto
    Member
    from Tracy, CA

    Well now I’ve seen everything! :confused:
     
  8. Mart
    Joined: Mar 3, 2001
    Posts: 4,981

    Mart
    Member

    Here in the UK Neil Bennet's Batten special has the rear part of the 32 frame flipped and the spring arranged like the Edsel Ford car. It is more sports special than hot rod. It makes for a very low rear.

     
    Hnstray likes this.
  9. hammeredt
    Joined: Mar 3, 2006
    Posts: 433

    hammeredt

    Thanks for chiming in guys.

    @alchemy I hear ya on the shackle hitting and am playing around with positioning.

    @Mac the Yankee That is a great reference. If an original Ford Engineer thought it worked, I feel comfortable to proceed.

    @Mart Great car and a great inspiration. I am looking to build something in between an American hot rod and a English/European sports special. So the reference is spot on.

    Here is another pic of the Batten Special and its bare chassis.

    Boz overhead.jpg

    Boz overhead naked.jpg

    The big difference with my plan was the spring ahead, which will likely be slightly different because of the shorter distance between springs, but nothing that would make it not work just fine.

    Thanks again!
     
    catdad49 and Jet96 like this.
  10. Mimilan
    Joined: Jun 13, 2019
    Posts: 1,232

    Mimilan
    Member

    Use your imagination ! you can go way lower than that with a conventional frame over the top.

    Use inverted "Portal Axles" from a VW Kombi on the end of your axle tubes.
    Because you've already got a Banjo rear-end you need to flip the crown wheel to the other side so the axles turn backwards, Then the portal axles reverse the direction.

    The Kombi portal axles [also called reduction hubs] lower the ratio by 1.26, so you need a 3.25 C&P to end up with an overall ratio of 4.10:1

    9ef8e25602a4b894b07d7c46484842df.jpg

    Volkswagen_Driveshaft_Reduction_Boxes_1.jpg
     
    Ned Ludd and 62rebel like this.

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