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Technical Home made open drive conversion

Discussion in 'Traditional Hot Rods' started by Truckedup, Jan 11, 2014.

  1. Truckedup
    Joined: Jul 25, 2006
    Posts: 4,209

    Truckedup
    Member

    Anyone made an open drive conversion for a Ford banjo rear? I have some inexpensive ideas but what to see what other have done...
     
  2. pitman
    Joined: May 14, 2006
    Posts: 5,107

    pitman

    The caution is usually to ensure you've taken care of the housing 'twist' loads, ie: stronger wishbones, radius rods, hairpins four-bars, parallel main leaf springs etc.
     
  3. Truckedup
    Joined: Jul 25, 2006
    Posts: 4,209

    Truckedup
    Member

    I'm more interested in home made oil seal holders...
     
  4. lowsquire
    Joined: Feb 21, 2002
    Posts: 2,564

    lowsquire
    Member
    from Austin, TX

    End of an old torque tube, aluminium slug, lathe, bearing supply shop. The rest is common sense and basic use of a vernier caliper.


    Posted using the Full Custom H.A.M.B. App!
     

  5. sdroadster
    Joined: Jul 27, 2006
    Posts: 379

    sdroadster
    Member

    What about the other end? Does anyone have a method for converting a 39 to 48 Ford transmission to open drive?
     
  6. DD COOPMAN
    Joined: Jul 25, 2009
    Posts: 1,121

    DD COOPMAN
    Member

  7. Truckedup
    Joined: Jul 25, 2006
    Posts: 4,209

    Truckedup
    Member

    Yup, those parts I have or can make...Some thing similar on the tranny end. I have old Jeep drive shafts and yokes to use ....This is a V8 60 powered vehicle that won't see much actual road use...
     
  8. 117harv
    Joined: Nov 12, 2009
    Posts: 6,590

    117harv
    Member

  9. Kevin Lee
    Joined: Nov 12, 2001
    Posts: 7,440

    Kevin Lee
    Super Moderator
    Staff Member

  10. toddwith2ds
    Joined: Jul 5, 2010
    Posts: 86

    toddwith2ds
    Member
    from AZ

  11. F-6Garagerat
    Joined: Apr 12, 2008
    Posts: 2,652

    F-6Garagerat
    Member

    Open drive truck centers for banjos aren't that hard to find. Check the classifieds here or the ford barn. I've got open drive trans parts I would sell. PM me if you're interested.
     
  12. manyolcars
    Joined: Mar 30, 2001
    Posts: 8,510

    manyolcars

    use a 49-53 transmission
     
  13. I built one a couple of years back for my bucket out of a 39 torque tube rear, machined up a new seal housing from a piece of billet, used the original female spline from the torque tube driveshaft, bored a later model Ford yolk and pressed in the female splined section, welded it up with some Eutectic 680 rods. Works like a dream, I had 3 early ford truck centres but they are a taper and key type setup and the splined deal to me just seems a stronger option. I will see if I can dig some pics out.
     
    Nailhead A-V8 likes this.
  14. brokenspoke
    Joined: Jul 26, 2005
    Posts: 2,922

    brokenspoke
    Member

    ^^^^^^x 2^^^^^^^
     
  15. verde742
    Joined: Aug 11, 2010
    Posts: 5,721

    verde742
    ALLIANCE MEMBER
    1. a veteran died today

    Does anyone know of an e-z way to convert a 1952 Chevy pickup, 3 speed , to an "open" drive shaft?
     
  16. gimpyshotrods
    Joined: May 20, 2009
    Posts: 18,676

    gimpyshotrods
    ALLIANCE MEMBER

    Epic brilliance in phrasing!
     
  17. Hnstray
    Joined: Aug 23, 2009
    Posts: 12,171

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL


    Replace the transmission with a '55 up passenger car or pickup tranny and '55 up to '70 pickup rear axle. That would give you open drive and 6 bolt hubs that match current wheels.

    There is more to the details but they are routine and obvious
     
  18. JohnEvans
    Joined: Apr 13, 2008
    Posts: 4,883

    JohnEvans
    Member
    from Phoenix AZ

    Only way on a Chevy is to change both the rear and trans to later model stuff.
     
  19. gimpyshotrods
    Joined: May 20, 2009
    Posts: 18,676

    gimpyshotrods
    ALLIANCE MEMBER

    Yup, S10 T5, S10 rear axle, and passenger car hubs and brakes on the front.:D
     
  20. leon renaud
    Joined: Nov 12, 2005
    Posts: 1,936

    leon renaud
    Member
    from N.E. Ct.

    Is there a way to convert a 49 ford automatic to take a torque tube? i know this might sound odd but I'm limited to automatic use (bad leg) i have access to a 49 flattie complete aircleaner to pan and the automatic with it. i have either a 40s banjo or a 36 I could use and i think i'd like to keep the rear torque tube.everything will be going in a 27 t roadster body. the cost of the power pack is a swap for an Econoline axle.
     
  21. Hnstray
    Joined: Aug 23, 2009
    Posts: 12,171

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    Not to be too nit picky, but Ford didn't offer the Fordomatic until '51 model year. So, it could be '51 thru '53. In any case, I can't think of any 'easy' way to convert that, or any other, automatic to torque tube driveline. No doubt such a conversion could be done with enough serious machine work.

    It seems to me that using a banjo rear end with open driveline, either the stock '46/7 pickup unit, or converting the passenger axle to open drive, would be far easier than modifying the trans to closed drive. It's unlikely the driveshaft will be visible to the casual observer, but the banjo rear would be, and I suspect that is what you are after.

    One other thought. The early Fordomatic, while functional, is a bit bulky, heavy, sluggish and not very efficient by modern standards. I suggest you think about using a later C4 Cruiseomatic......they are smaller, lighter (aluminum case), crisper shifting, easily maintained, readily available and there are adapters made to bolt them to the flathead engine.

    Best wishes with your project.
     
  22. leon renaud
    Joined: Nov 12, 2005
    Posts: 1,936

    leon renaud
    Member
    from N.E. Ct.

    I had question on the 49 date I'm told the sedan the engine trans was pulled from is a 49 I thought it would be a lot of work converting to the automatic 'back when' Especially since not many trusted them that far back . I didn't think they used autos till 53 but then i was only born in 54!I'm trying to work with what I have. There is very little to no money going in this project I have 8 and 9 inch rears here but yes I prefer staying with a banjo.
     
  23. Truckedup
    Joined: Jul 25, 2006
    Posts: 4,209

    Truckedup
    Member

    Torque tube is actually more complex than an open drive if you add up the pieces needed to make it work...
     
  24. TERPU
    Joined: Jan 2, 2004
    Posts: 2,279

    TERPU
    Member

    I've tried to stay out of this, but It's just not my nature.

    Find an old Ford Heavy Duty Three Speed and take the output yoke off of it and the rear seal. Set tham aside.

    Find a beat up old Torque tubewith the flange and about 6" of good tube from the base.


    Chuck up a piece of 3/4 solid stock and make an insert which is the correct size for the seal and inside of the torque tube. DO NOT WELD IT TOGETHER YET.

    Install the yoke on the Ford Rear input, it's the same size and spline count so it's an easy fit. Measure the distance from the flower flange to the seal area and also where the pin is supposed to go.

    Cut the tube to length remembering to add in the seal retainer piece, Drill the holes for the Yoke pin for 1/2 Pipe plugs and tap them. Test fit everything but don't hammer the seal in yet.

    Weld together when it fits correctly and then install the seal. Put it all together and figure out your rear rods and torque arms. and install in the car. This works and is pretty easy, I used it in my '24 Touring because I was broke and had parts.


    OR- find a Ford 42-47 Truck rear and live easy.


    All the best,

    Tim
     
    Nailhead A-V8 likes this.
  25. Tman
    Joined: Mar 2, 2001
    Posts: 34,924

    Tman
    ALLIANCE MEMBER

    If you do a search I also did a tech post with pics and PNs

    Posted using the Full Custom H.A.M.B. App!
     
  26. Truckedup
    Joined: Jul 25, 2006
    Posts: 4,209

    Truckedup
    Member

    Tman, you did a nice job on that.....I'm doing something similar but with Willys Jeep drive shafts and yokes because that's what I have. Same thing on the tranny more or less when I find a one inch 6 spline coupler or a inexpensive worn V-8 60 U joint.
    I don't have a lathe ... My friend has one but doesn't know how to use it or what tools do what. But I'll get it done...:D
     
  27. Tman
    Joined: Mar 2, 2001
    Posts: 34,924

    Tman
    ALLIANCE MEMBER

    Last edited: Jan 14, 2014
  28. Shaggy
    Joined: Mar 6, 2003
    Posts: 5,207

    Shaggy
    Member
    from Sultan, WA

    I'm sure it's been done, tommy ivo, i think??, had a b+M hydro converted to torque tube in a roadster in an old artical i have. It tells about the conversion during a hydro artical
     
  29. thunderbirdesq
    Joined: Feb 15, 2006
    Posts: 7,003

    thunderbirdesq
    Member

    Huh?!? What's needed? You obviously already have a closed drive trans and rear end... trans, driveshaft/tube, rear axle... Dead-simple, reliable, inexpensive, sturdy... but what do I know...:cool:
     
  30. Hnstray
    Joined: Aug 23, 2009
    Posts: 12,171

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

     

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