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Technical Mix'n'match with an Chevy gearbox and a Ford rear

Discussion in 'Traditional Hot Rods' started by volvobrynk, Sep 7, 2017.

  1. volvobrynk
    Joined: Jan 30, 2011
    Posts: 3,587

    volvobrynk
    Member
    from Denmark

    For those in to three Springers and weird speedster stuff.

    If I got a 1946 Chevy 3 speed gearbox with syncros, from a pick up, and wanted to adapt a Ford Model A torque tube to my gearbox, anybody got any ideas and or advice on the matter?

    I've be contemplating to run the Ford tube to avoid to go for a open conversion on the box, where no parts are available.

    Rear end is a Nissan item, but I got that covered.
     
    Runnin shine likes this.
  2. volvobrynk
    Joined: Jan 30, 2011
    Posts: 3,587

    volvobrynk
    Member
    from Denmark

  3. tb33anda3rd
    Joined: Oct 8, 2010
    Posts: 17,588

    tb33anda3rd
    Member

    sorry i never mixed the early ford and early chevy stuff so i don't know. i was hoping someone who has done it knew.
    on a 3 springer i always thought it used a ford front end and a chevy parallel spring in the rear, but i guess it could be either way.
     
    volvobrynk likes this.
  4. volvobrynk
    Joined: Jan 30, 2011
    Posts: 3,587

    volvobrynk
    Member
    from Denmark

    The ones I refer to is pre-war dry lake racers setup made to go fast and get rid of the pre-1928 Chevy rear ends that broke like gl***. Under even hard driving (racing) with stock engine.

    The setup you referees to, I belive is a postwar thing.
    But good nonetheless.
    I just thought between you and your cousin, you would have the parts in-house to do a mock-up.
     
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  5. volvobrynk
    Joined: Jan 30, 2011
    Posts: 3,587

    volvobrynk
    Member
    from Denmark

    In talking like this

    [​IMG]
    [​IMG]
    [​IMG][​IMG]
     
  6. tb33anda3rd
    Joined: Oct 8, 2010
    Posts: 17,588

    tb33anda3rd
    Member

    i don't have a lot of ford stuff around here but i can see if i can scrounge up a torque tube and try it against the 37 chevy ****** i have here.
     
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  7. volvobrynk
    Joined: Jan 30, 2011
    Posts: 3,587

    volvobrynk
    Member
    from Denmark

    Thanks Ted!

    Maybe @ct1932ford can help?

    I doubt them 3 springer guys had much CNC tools and 3D printers around [emoji12]
     
  8. volvobrynk
    Joined: Jan 30, 2011
    Posts: 3,587

    volvobrynk
    Member
    from Denmark

    I been thinking about these two guys, because they are so knowledgeable. But I have no idea if this is with in there area.

    But here goes

    @pgan
    @Rockerhead

    And maybe
    @Jimmy B
    Knows something?
     
  9. GM was using a torque tube into the '50s. With all the pieces in one place it shouldn't be that hard to mix n match and a little machine work to get it all to mate.
     
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  10. 302GMC
    Joined: Dec 15, 2005
    Posts: 8,513

    302GMC
    Member
    from Idaho

    It seems to me front end of the Ford tube & shaft have to be cut off, then replaced with the slip yoke, ball & socket from a Chevrolet. As the yoke in the rear of the Chev trans holds the top train in place, making changes up there would be risky.
     
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  11. volvobrynk
    Joined: Jan 30, 2011
    Posts: 3,587

    volvobrynk
    Member
    from Denmark

    Valid point, 302.
    But, since the Chevy is a two piece deal, I can unbolt the Chevy U-joint, and hope I can chuck the Ford rear part of the yoke, and install Chevy U-joint between the two?

    I got a deal on for rear with torque tube, and can get a ride-along for it too, but it's a lot of parts to buy just to get the prop shaft, TT and half a U-joint.
     
    Last edited: Sep 9, 2017
  12. volvobrynk
    Joined: Jan 30, 2011
    Posts: 3,587

    volvobrynk
    Member
    from Denmark

    Im thinking about getting these items second hand;
    [​IMG]

    Get one of these used, Ford Model A U-joint

    [​IMG]

    And 3/4 tons '46 Chevy U-joint

    [​IMG]

    and see what needs to be changed around.

    What is the weak link in the Ford tube, that can/must be beefed up in the Ford TT?

    I'm putting a '54 235 Chevy car Engine in front.
     
    Last edited: Sep 9, 2017
    Runnin shine likes this.
  13. ct1932ford
    Joined: Dec 3, 2010
    Posts: 13,287

    ct1932ford
    ALLIANCE MEMBER

    I think I have a U joint in my going to Hershey stuff. Beyond that I don't have much around that you could use. I do think 302 has the right idea. Mark
     
  14. volvobrynk
    Joined: Jan 30, 2011
    Posts: 3,587

    volvobrynk
    Member
    from Denmark

    If the Chevy torque tube was available, I would have run that, but I can't seem to locate anything.

    Isn't the Chevy the same in the basic design, but different in the specific look?
     
  15. tb33anda3rd
    Joined: Oct 8, 2010
    Posts: 17,588

    tb33anda3rd
    Member

    on the chevy the bell slides, on the ford it is fixed so it can keep the rear from moving front to back.
     
  16. volvobrynk
    Joined: Jan 30, 2011
    Posts: 3,587

    volvobrynk
    Member
    from Denmark

    Dadgumed I forgot to factor in that spring stretch and moves rearend front to back.

    I'm glad I asked before if started chopping and fabricating.

    So I have to fin a Chevy rear end.

    Thanks guys!
     
  17. volvobrynk
    Joined: Jan 30, 2011
    Posts: 3,587

    volvobrynk
    Member
    from Denmark

    Dadgumed I forgot to factor in that spring stretch and moves rearend front to back.

    I'm glad I asked before if started chopping and fabricating.

    So I have to fin a Chevy rear end.

    Thanks guys!
     
  18. Kinky6
    Joined: May 11, 2003
    Posts: 1,765

    Kinky6
    Member

    Volvo, just so I understand, you're using two springs up front, and a Ford transverse spring in back, correct? I was not getting about how the rear spring (s?) allow the rear end to move forward & back.

    If you're not married to using the A rear end, you might look for a mid-40's Ford truck rear, maybe as early as '41, but by '46-'48 they had a truck rear with the banjo & bell type side tubes, that also used an open driveline connecting to the pinion. maybe this would work for you? K6
     
  19. volvobrynk
    Joined: Jan 30, 2011
    Posts: 3,587

    volvobrynk
    Member
    from Denmark

    I'm using 4 springs in the car, I just wanted to know how guys like Spurgin got a ford rear behind his Chevy transmission.

    Because the Chevy rear ends ain't that available over here.
    So I wanted to put a Ford Torque tube between my Chevy 46 pick up 3 speed and the Nissan Hardtail.
    And for that I needed some 3 springer info.

    But in my eager, I forgot to count in that two rear springs with shackles makes the rear and move back and forth‍♂️

    Between the stuff available it's either

    Option 1; 525 $ 34 car rear end, I don't know if iTT fits my box.

    Option 2; 375 $ 31 truck rear, should fit my box, but I have to path a bridge that sets me back another 80$.

    Option 3; locate a 47-51 3/4 ton torque tube/propshaft setup, and habe it shipped to Denmark.


    And please note that a 1928-31 ford rear end goes for 120-180$, that's why I looked at the fords first.
     
  20. volvobrynk
    Joined: Jan 30, 2011
    Posts: 3,587

    volvobrynk
    Member
    from Denmark

    The ‍♂️should have been an facepalm emojicon.
    But it shows as a male-symbol/iron malm/Volvo symbol on my end
     
  21. Stovebolt
    Joined: May 2, 2001
    Posts: 3,666

    Stovebolt
    Member

    Back in the day, Don Montgomery ran an enclosed toque tube when running the 12 port Jimmy in the 32 3 window.

    The Jimmy had a Buick transmated to it.

    He used the Ford outer tube as it boltrd up to the trans, and mated a Buick end to the inner drive shaft.

    A few years ago I bolted a Ford clam up to a Chev gearbox, so it is possible to do it with the parts you envisage using.

    The Chev universal is quiet small and will take less punishment than the Ford one. I know because I destroyed my fair share driving a 54 Chev.
     
    volvobrynk likes this.

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