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Technical 3 speed toploader

Discussion in 'Traditional Hot Rods' started by C0ra1l1, Dec 24, 2013.

  1. C0ra1l1
    Joined: Sep 24, 2010
    Posts: 193

    C0ra1l1
    Member

    Been searching for a top-loader and finally managed to get one.
    Fellas, need a little help to identify it. Hopefully the pics will help this.

    The case seems to bear 78 casting as much as I can see. Inner sides are completely square where the bolts are situated.

    The gears include a combination of straight cut and helical cut gears which
    to my knowledge are pre 36'.

    The rear mount is clearly the type which was introduced in 42'.

    Shifter lever is a 36-37' model with a single gentle curve.

    Casting number starts with 99.

    Vanpeltsales page is a great source for information but I still feel a bit confused...

    -Pasi
     

    Attached Files:

  2. Fedcospeed
    Joined: Aug 17, 2008
    Posts: 2,011

    Fedcospeed
    Member

    78 case is the good one.It looks good in the pictures,fill her up and run it!!!Someone else could explain the case thing better than me,it has to do with the rear bearing surface.Merry Christmas: The Fedcos
     
  3. C0ra1l1
    Joined: Sep 24, 2010
    Posts: 193

    C0ra1l1
    Member

    Merry Christmas to You Fedcosspeed. Will surely use this in my AV8-project.
     
  4. F-6Garagerat
    Joined: Apr 12, 2008
    Posts: 2,651

    F-6Garagerat
    Member

    It looks to be missing a brass synchro ring to me.
     
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  5. Andy
    Joined: Nov 17, 2002
    Posts: 4,470

    Andy
    Member

    It is a pre 39 gear set. No brass synchros. With the square cut low, it is probably fairly early set of gears. The set looks beautiful.
     
  6. HellsHotRods
    Joined: Jul 24, 2009
    Posts: 1,304

    HellsHotRods
    Member

    Looks like an early 39 truck trans. Single synchro, single detent tower. It's a nice clean trans.
     
  7. F-6Garagerat
    Joined: Apr 12, 2008
    Posts: 2,651

    F-6Garagerat
    Member

    Oh yeah, I missed the straight cut first/reverse.
     
  8. C0ra1l1
    Joined: Sep 24, 2010
    Posts: 193

    C0ra1l1
    Member

    In addition to straight cut gears, the mainshaft is also not a spiral one.
    My bet is that someone has found a clean set of earlier gears and put them into a later housing.
     
  9. TERPU
    Joined: Jan 2, 2004
    Posts: 2,185

    TERPU
    Member

    78 Housing is the good one for sure. But find a set of later gears you will be alot happier. Changing them out is fairly straightforward and makes a much more pleasant driving experience.


    All the best,

    Tim
     
  10. edwardlloyd
    Joined: Aug 2, 2003
    Posts: 2,055

    edwardlloyd
    Member
    from Germany

    I've just rebuilt one of those cases. Learnt here that the 99 case is a Mercury casting but is the same as a 78. Mine was a 99 casting stamped with a 1939 Ford Vin.
    The gears are straight cut and therefore earlier, but I'd never change them out, they look NOS! Looks a nicely rebuilt transmission.
     
  11. Rich Wright
    Joined: Jan 9, 2008
    Posts: 3,922

    Rich Wright

    The above is true and is the ideal situation, but.....

    ....There is absolutely nothing wrong with earlier gear sets. A little more primitive maybe, but still very doable. Especially considering the apparent condition of your trans.
    I'd use it as is and move on to other aspects of your project while keeping an eye peeled for another trans/later gear set.
    These transmissions are getting a little harder to find but they're still out there for reasonable money.
    A little patience will get you what you want...:)
     
  12. hydroshawn
    Joined: May 27, 2006
    Posts: 335

    hydroshawn
    Member
    from Brenham,Tx

    http://www.vanpeltsales.com/

    this is a good place to start. Also there is some good reading on here as well. Some things I've learned the hard way. (trial & error)

    In the old days first was thrown out & LaSalle first gears were used, they were beefier.

    I have heard that Speedway sells them but I'm not sure of the quality.

    It is a great looking Tranny!!

    Also watch-out for the towers. the early forks are smaller. 39 & later are bigger.
     
  13. 40FordGuy
    Joined: Mar 24, 2008
    Posts: 2,908

    40FordGuy
    Member

    A nice thing about those cases is you can use gears from all the way to '48.

    Happy Roddin' 4TTRUK
     
  14. LaSalle gears in a Ford case??
     
  15. I thought the same thing! I'd like to see the tech on that one!! He's prob talkin about a Zephyr gearset...
     
  16. hydroshawn
    Joined: May 27, 2006
    Posts: 335

    hydroshawn
    Member
    from Brenham,Tx


    Brain Fart!!! You are correct!!
     
  17. forty1fordpickup
    Joined: Aug 20, 2008
    Posts: 282

    forty1fordpickup
    ALLIANCE MEMBER

    X2! That gear set looks real good. What do you intend to run it in? Something light leave it alone. If you are are running a heavier car or a tall rear ratio put the Zephyr gear set in.
     
  18. C0ra1l1
    Joined: Sep 24, 2010
    Posts: 193

    C0ra1l1
    Member

    My intention is to run it in 29' with an 8ba. My machinist just got the block (.080 bore) and crank ready. Quite a low budget build, nothing fancy: EAB heads and original intake with one carb. The factory cam is in pretty good shape, maybe using even it, let's see. Torque tube and original banjo with 3:54 gears.
    Believe me, transmissions are not easily found in Finland. I suppose this would do when used with good manners...

    I took a screen capture of my case on the left, showing the different bellies, the 78 in the middle and the earlier 48 case, on the right side.

    -Pasi
     

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  19. flthd31
    Joined: Aug 5, 2007
    Posts: 561

    flthd31
    Member

    Looks to me that you have all the parts correctly identified.

    A lot of comments that are telling you to swap in later gears are forgetting one point.
    It's hard to see from the pic, but if that's a single detent shift tower, you're pretty much stuck using an early gear set. The syncro is different on the later gear sets (46-48) which would be much more desirable. Pic I uploaded is an open drive truck tranny just to show you the later syncro. The fork in the tower has a wider span and is back a little farther. Your early fork wont fit.

    One last thing, the rear mount is upside down. The webbing goes up to clear the saddle mount that is used under it.
     

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    Last edited: Dec 27, 2013

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