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Triangulated rear suspension under a 46 Ford

Discussion in 'The Hokey Ass Message Board' started by oldspert, Dec 16, 2008.

  1. oldspert
    Joined: Sep 10, 2006
    Posts: 1,249

    oldspert
    Member
    from Texas

    Here is my way to re-place the buggy spring rear suspension under a fat fender Ford. Or any frame that is wide enough for the GM metric chassis rear suspension to fit.

    First measure the donor rear suspension to determine how much to narrow it to fit inside the rails of the receiver frame.

    [​IMG]


    Next measure the frame to determine how much needs to be removed for the donor to fit.

    [​IMG]


    Weld in braces to keep the frame from springing out of shape. Make sure you have everything level.

    [​IMG]

    Next, drill out the rivets holding the crossmember in place as well as some of the side boxing of the frame. Remove said parts.

    [​IMG]

    [​IMG]

    Cut out the frame legs to the dimension needed.

    [IMG]http://i462.photobucket.com/albums/qq343/edzolz/frame%20build/chassis030.jpg

    Some friends that were inside the crossmember !!

    [​IMG]

    Make cardboard templates to simulate the two frames. This determines what needs to be trimmed from each individual piece.

    [​IMG]

    Trim the donor to fit inside for a tight fit.

    [​IMG]

    Match the two parts together. Align the bottom of one to the bottom of the other. Level it all out. Make sure the donor is true to the original frame before tacking it in.

    [​IMG]

    Use the cardboard template to cut the pieces from the donor to fill in the exposed areas of the donor in the new location.

    [​IMG]

    Tack in the filler pieces and weld solid all around.

    [​IMG]

    Putting the body back in place and stance. The pinion angle is 4 degrees with no load and increases with weight so it should be OK after assembly.

    [​IMG]
    [​IMG]

    Really an easy way to get four link triangulated suspension with losing the factory geometry of the setup. I might even use air bag setup in place of the springs. Any GM metric chassis parts fit for rebuild or for suspension upgrades.
     
    Last edited: Dec 16, 2008
  2. stealthcruiser
    Joined: Dec 24, 2002
    Posts: 3,719

    stealthcruiser
    Member

    Sonofabitch!!!!!

    That fits rather nicely!!!!!!

    I'll be watching for more!
     
  3. Clutched
    Joined: Oct 14, 2008
    Posts: 230

    Clutched
    Member

    Nice work...you made it look to easy.
     
  4. nexxussian
    Joined: Mar 14, 2007
    Posts: 3,231

    nexxussian
    Member

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  5. oldspert
    Joined: Sep 10, 2006
    Posts: 1,249

    oldspert
    Member
    from Texas

    It is.
     
  6. banditomerc
    Joined: Dec 18, 2005
    Posts: 2,080

    banditomerc
    Member

    where were you with this info when i was doing my chassis?
     
  7. Hnstray
    Joined: Aug 23, 2009
    Posts: 10,585

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    Very well done..........congratulations and thanks for the thread.

    Ray
     
  8. oldspert
    Joined: Sep 10, 2006
    Posts: 1,249

    oldspert
    Member
    from Texas

    When were you doing yours, This was posted in 2008.
     
  9. koolkemp
    Joined: May 7, 2004
    Posts: 6,008

    koolkemp
    Member

    Are you still working on the car? Lets see some updates!
     
  10. oldspert
    Joined: Sep 10, 2006
    Posts: 1,249

    oldspert
    Member
    from Texas

    Still undergoing construction. Will update build soon. Have a tech to post this tech week on making a column support from scratch.
     
  11. 49desotoman
    Joined: Jun 11, 2011
    Posts: 9

    49desotoman
    Member

    so hows the build going i have 46 to interested in seeing yours done how it sits and r you doing anything to the front
     
  12. need louvers ?
    Joined: Nov 20, 2008
    Posts: 12,912

    need louvers ?
    Member

    That's lot's of welding to do a fairly simple job. El Polacko and I used the same rear under a '46 we built about twenty years ago with the stock lower arms and some tube uppers. Lots easier to make brackets to attach to the frame in my opinion. We also used a Corvette rear single leaf spring and the stock Ford crossmember too. I'm not tying to condem your work, 'cause you did it well, but just seems like the long way 'round...
     
  13. oldspert
    Joined: Sep 10, 2006
    Posts: 1,249

    oldspert
    Member
    from Texas

    I did it like I did because I didn't want to lose the factory geometry. Not saying it couldn't be duplicated, but I didn't want to mess anything up.

    I have since installed a MII type front suspension. Haven't gotten very far in the build. Only work on it in spurts. Had a setback when i purchased Helix lower control arms. Never again will buy from that company.
     
  14. oldspert
    Joined: Sep 10, 2006
    Posts: 1,249

    oldspert
    Member
    from Texas

    After lots of set backs, I am nearly ready to resume build. Had back surgery to fuse three vertebrae and can't do much heavy stuff. back soon.
     
    Tim likes this.
  15. This suspension was used in my '47 convertible when it was built 20 years ago. It needed a floor pan redo above the GM crossmember to get it all to clear, but it rides great.

    Steve 100_1433_zpslhbzjoaz.jpg
     

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