Register now to get rid of these ads!

Torque tube/drive shaft shortening;

Discussion in 'The Hokey Ass Message Board' started by mushmouth, Oct 6, 2005.

  1. mushmouth
    Joined: Aug 20, 2005
    Posts: 287

    mushmouth
    Member
    from Minnesota

    Does anyone out there have information about or pictures that depict the shortening of a Ford torque tube and drive shaft? I have always found this to be a curiosity that I could never satisfy. Reading the Bishop/Tardel book has rekindled this. I wonder if they bought a NOS 34 drive shaft to shorten and are using it in their 40 torque tube. Any info would be greatly appreciated.
     
  2. jettwein
    Joined: Apr 17, 2005
    Posts: 179

    jettwein
    Member

    I have a similar question... not to hijack - I think this is on topic...

    I have a '36 rearend that'll be going under a Model A frame, and it's obviously far too long (torque tube). Could I just get a model A TT and driveshaft and bolt it up to the rear end to avoid the h***le of shortening? I suppose it would have to work out perfectly, and as the trans mounts are custom, I'm sure it wouldn't...

    Any thoughts? Mushmouth, I don't know about where you are, but where I'm at, I'm having a hell of a time finding anyone who will touch shortening mine for me any closer than LA. Good luck to 'ya...

     
  3. racer5c
    Joined: Nov 30, 2002
    Posts: 2,218

    racer5c
    Member

    I would like to know too, but boy are you in for it from the newbie police
     
  4. Kevin Lee
    Joined: Nov 12, 2001
    Posts: 7,676

    Kevin Lee
    Super Moderator
    Staff Member

    I doubt they bought a NOS one. They likely just moved the three factory relieved flathead blocks, five sets of Edelbrock block letter heads, and a Zepher geard '39 transmission or two out of the way, then simply picked the best of several dozen - likely stored upright in a 55 gallon drum which held the fuel Gaston Chevrolet used to attain a tenth place finish in the 1919 Indianapolis 500.
     
    bct likes this.
  5. Skibo
    Joined: Aug 28, 2005
    Posts: 62

    Skibo
    Member
    from FL

    Maybe some knows of a shop that will shorten these, that would be good info, and do a search as this may have been discussed before.


    Skibo
     
  6. cuznbrucie
    Joined: May 1, 2005
    Posts: 2,567

    cuznbrucie
    Member

    I can tell you who to get in touch with, and I'll vouch for their work and courteous service......The Hot Rod Works in Nampa, Idaho.....they specialize in early Ford rears, open drive conversions, Quickchanges, etc.

    They shortened and resplined my '48 Merc driveshaft for me and the work was superb......go here for info:

    http://www.hotrodworks.com

    tell Nick that Cousin Brucie recommended you.....

    Brucie


     
  7. 392_hemi
    Joined: Jun 16, 2004
    Posts: 1,737

    392_hemi
    Member

    Cooks Machine Works in L.A. will cut it down and respline it if you want to go that route. On mine, I bored out the coupling, cut the shaft down, put it in the bored out coupling, TiG welding it, and drilled a new hole for the pin that goes through the shaft and coupling. Haven't run it yet, so can't say for sure it will hold up, but I'm pretty confident it will.
     
  8. Flathead Youngin'
    Joined: Jan 10, 2005
    Posts: 3,666

    Flathead Youngin'
    Member

    do an intro
    do a search

    you shall find the answer to your question, Lemmiwinks...it came up about two months ago.....pretty good discussion

    but first you must enter the small intestine, there you will find the sparrow prince and he shall guide you on your journey..
     
    Aaron J likes this.
  9. Harrison
    Joined: Jan 25, 2002
    Posts: 7,133

    Harrison
    Member

    This isn't rocket science.

    Figure out how long the torque tube and shaft need to be, take it to your local welding/machine shop, have them cut & weld the TT, then have them cut & respline the driveshaft.

    If you don't have the tools/equipment to do it yourself.

    I figure any TT can be shortened. Some just look cleaner than others depending on where it is cut/welded. Mine came from a '46 and connectes a '40 rear to a '39 trans.

    JH
     
  10. Automotive Stud
    Joined: Sep 26, 2004
    Posts: 4,392

    Automotive Stud
    Member

    Local machine shops should be able to do it, but I can vouch for Cousin Brucie's too.

    Shortening the torque tube is easy. The trick is, the drive shaft is tapered, so after you cut it down the metal needs to be spray welded or built back up before the splines can be cut into it.

    Or, a shop could make a whole new inner drive shaft from scratch, but that would probably be a lot more pricey.
     
  11. Harrison
    Joined: Jan 25, 2002
    Posts: 7,133

    Harrison
    Member

    I'm pretty sure my '46 driveshaft wasn't tapered. We just lopped one end off and resplined it.

    JH
     
  12. cutting the outer tube square isn't hard to do....use a BIG pipe cutter
     
  13. visor
    Joined: Aug 11, 2002
    Posts: 513

    visor
    Member Emeritus
    from Missouri

    Welcome to the Hamb Mushmouth.

    There is a reason that Vern Tardel uses the 33/34 torque tube and driveshaft.
    As Vern explained, this driveshaft is a hollow 2'' diameter pipe. The splined
    ends are welded on.
    So all you need to do is detemine the length , cut, slip in the 6 to 8 spline adapter,
    true it up and tig weld in place. The 8 spline o.d. is close to the i.d of the driveshaft.
    Done..........no resplining.

    The 33/34 torgue tube is a nice clean looking piece to use and does not have
    the internal support bearing to h***le with. These bearings are installed in the later units
    to keep the smaller driveshafts from whipping. The larger 33/34 won't whip around.

    " 36-3 Windows" suggestion on cutting the torque tube is the easy way to go.
    grind about a 37 degree bevel on both pieces, lay in a V jig. and weld it up with a root
    p*** and then a final cap weld.

    I have a 36 rear (in my 32 fiver) and the 34 driveshaft and tube, work perfect.
    If you are using a stock center section..you may want to add the " gear
    lube dam" to keep the lube from running down the tub from your rearend.
    Vern sells one that I know of.

    Now all you have to do is find a 33/34 tube and shaft.
    hope this helps.............
    ----------------------------------------------------------------------------------------------------------------------------
    vagabonds cc
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.