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Technical Closed shaft rear end to open shaft

Discussion in 'Traditional Hot Rods' started by LB+1, Jan 29, 2021.

  1. LB+1
    Joined: Sep 28, 2006
    Posts: 581

    LB+1
    Member
    from 71291

    I have searched can't find, how to change a 40 ford rear end from closed drive shaft to open. In the back of my tire smoked mind, this was common in the 50's? Hope someone knows how. Now on a Chevrolet closed shaft rear you can use a 3/4 ton drive shaft.
     
  2. Budget36
    Joined: Nov 29, 2014
    Posts: 5,702

    Budget36
    Member

    Easiest is to find a ‘42-47 Ford PU rear. But have also read that other methods work, with machining an adapter and using a seal, etc. pretty sure kits are available, but don’t recall who from
     
  3. rusty valley
    Joined: Oct 25, 2014
    Posts: 2,341

    rusty valley
    Member

    speedway has em i believe
     
  4. As Budget36 said, 40's Ford pickup rear end parts... or buy one from Hot Rod Works or other vendors.
     
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  5. krylon32
    Joined: Jan 29, 2006
    Posts: 7,088

    krylon32
    Alliance Vendor
    from Nebraska

    For converting to open drive Hot Rod Works is the only way to go. Stay away from the cheaper kits.
     
  6. 31Apickup
    Joined: Nov 8, 2005
    Posts: 2,544

    31Apickup
    ALLIANCE MEMBER

    You’ll also have to come up with some radius rods to mount he rear ended once you get rid of the torque tube.


    Sent from my iPhone using The H.A.M.B. mobile app
     
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  7. 31 Chopped Coupe
    Joined: Aug 24, 2014
    Posts: 97

    31 Chopped Coupe
    Member

    Absolutely spend the little bit extra and go with Hot Rod Works kit. I have had no issues whatsoever with mine. Good quality stuff!
     
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  8. brading
    Joined: Sep 9, 2019
    Posts: 340

    brading
    Member

    As for the radius rods here is one way of doing it. Two tubes one each side from a brackets fitted to the wishbone at the Red dot to brackets fitted to the banjo at the Yellow dot.
     

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  9. Truckedup
    Joined: Jul 25, 2006
    Posts: 3,967

    Truckedup
    Member

    What I did on the mid engine street lakester built for a friend....All made from parts laying around an some lathe work and welding. It doesn't leak or vibrate but this car doesn't get a lot of miles....
    12372302504_f4442e9dbe_c.jpg 12372318914_4426f95b58_c.jpg 13173828085_2b231f0221_c.jpg
     
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  10. gbones32coupe
    Joined: Jan 1, 2007
    Posts: 725

    gbones32coupe
    Member

    Dude I may have to" steel"your idea on the rear ladder bars you made that is a dope idea why did I not think of that. That is exactly the idea I needed. I hope you do not mind but I love the look of that. And it is a period look. I'm building a 32 mid engine potvin blower set up. You can check it out in build threads 32 gbones32coupe

    Sent from my LM-Q720 using The H.A.M.B. mobile app
     
  11. gbones32coupe
    Joined: Jan 1, 2007
    Posts: 725

    gbones32coupe
    Member

    Dude do you have a build thread on This car I'm intrested pm me or post more pic of the car I could not find it. It's cool man love it

    Sent from my LM-Q720 using The H.A.M.B. mobile app
     
  12. HotRodWorks
    Joined: Dec 6, 2005
    Posts: 306

    HotRodWorks
    Alliance Vendor

    Last edited: Jan 30, 2021
    deucemac, warbird1 and rusty valley like this.
  13. LB+1
    Joined: Sep 28, 2006
    Posts: 581

    LB+1
    Member
    from 71291

  14. LB+1
    Joined: Sep 28, 2006
    Posts: 581

    LB+1
    Member
    from 71291

  15. LB+1
    Joined: Sep 28, 2006
    Posts: 581

    LB+1
    Member
    from 71291

    Thanks on the heads up
     
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  16. LB+1
    Joined: Sep 28, 2006
    Posts: 581

    LB+1
    Member
    from 71291

  17. LB+1
    Joined: Sep 28, 2006
    Posts: 581

    LB+1
    Member
    from 71291

  18. Truckedup
    Joined: Jul 25, 2006
    Posts: 3,967

    Truckedup
    Member

    It the car is in a lakester build thread here about 5 -7 years ago. unfortunately, a lot of the build photos were lost in a computer fuck up...There might be a few more , I will have look for them. The same car is my avatar.
     
  19. LB+1
    Joined: Sep 28, 2006
    Posts: 581

    LB+1
    Member
    from 71291

    I lucked up - found a good deal on this - Thanks everybody![​IMG]
     
  20. HotRodWorks
    Joined: Dec 6, 2005
    Posts: 306

    HotRodWorks
    Alliance Vendor

    That looks like a Model A rear end. Nothing interchanges with a '40.
     
  21. LB+1
    Joined: Sep 28, 2006
    Posts: 581

    LB+1
    Member
    from 71291

    It is gathering up stuff for my TT build. Engine 140 mercruiser, T-10, Model a front axle as well as rear axle I wanted 39,40 rear for the already in place juce brakes. [​IMG]
     
    Last edited: Feb 1, 2021
  22. If the 40 Ford rear is a truck rear you will need a machinist that knows his shit. In the truck rear the pinion and the driveshaft was one piece.

    Other wise you can get the parts you need from Speedway as a kit. I know that is whimping out but it is the easiest way.
     
  23. LB+1
    Joined: Sep 28, 2006
    Posts: 581

    LB+1
    Member
    from 71291

    Thanks and its a true story, go back up a few posts. Then you will see the way I now going. Found a super deal on converted to open shaft model A rear. I guess I will convert old school 40's backing plates ect. to juice drum brakes.
     

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