Register now to get rid of these ads!

Converting a T-86 from a side-shift to top loader?

Discussion in 'The Hokey Ass Message Board' started by iroc409, Nov 24, 2013.

  1. iroc409
    Joined: May 24, 2012
    Posts: 93

    iroc409
    Member

    I picked up a bunch of parts for my truck a while back, including a T-86 with overdrive. The T-86 is a few years newer than my truck, but out of the same make. The guy I bought the parts from says you can replace the top cover with a top-loader shifter and it will work. I wasn't really sure of this, but I found on Novak's site that Jeep made a top-loading T-86, and it looks fairly similar, so maybe it's possible.

    Has anyone ever tried it?

    My truck has a T-9 top-loading crashbox, so it's not set up for a column shift, so I'd kind of like to keep it a floor shift. It sounds like the Jeep shifter would be a good way to go, if it would bolt up.
     
  2. dirty old man
    Joined: Feb 2, 2008
    Posts: 8,866

    dirty old man
    ALLIANCE MEMBER

    Don't know about the top loader 3 spd. T-86, but I have a project I bought partially completed that has a Ford Toploader 4spd. form a '72 Mustand modified with removal of sidee shift forks and a bit of clearance gringing inside the top edges using a Jeep Tremec 4spd shafter on top. The 4 spd Tremec is a descendant of the "Toploader" Ford 4 spd. and this is because Ford sold the design and tooling to Tremec, I'm told.
    Tremec then sold various versions to all sorts of OEM makes and models.
     
  3. junkyardjeff
    Joined: Jul 23, 2005
    Posts: 7,836

    junkyardjeff
    Member

    Many years ago I remember reading in a magazine that someone took the shifter from a 39 trans and made it fit a Ford toploader 3 speed,can not remember the magazine or who wrote the article but was in the mid 70s and in one of the popular magazines at the time.
     
  4. second_floor_loft
    Joined: Jul 23, 2008
    Posts: 93

    second_floor_loft
    Member

    I've looked into that. Got the shifter to go on the trans from a T86 without the overdrive. (I actually have the whole trans) The issue I ran into was that the base of the shifter was longer, from bell housing end to the point where the overdrive bolted to the rear of the trans, than would fit. I had no way at that time to do any machine work to it, and was reluctant to risk the trans or overdrive. I'll take a look at it tomorrow and send you a PM.

    s_f_l
     

  5. dirty old man
    Joined: Feb 2, 2008
    Posts: 8,866

    dirty old man
    ALLIANCE MEMBER

    Because this is a forum where we share info, it'd be more fitting if you put that info where we could all see it, right here on this thread,
     
  6. Hud I
    Joined: Jul 19, 2008
    Posts: 162

    Hud I
    Member
    from Tennessee

    The top off of a Jeep 3 speed will work on the 85-86 non OD trans with no mods. Just remove the side shift forks and the top will drop right in. Not the case with the OD trans. The reverse fork of the top loader must be modified to actuate the reverse lock out rod. There is a very good thread over on the Studebaker board that covers this topic and has pics. Check it out. They do a better job of explaining the process. Hope this helps. Hud
     
  7. second_floor_loft
    Joined: Jul 23, 2008
    Posts: 93

    second_floor_loft
    Member

    Okay, here are the pic's and I hope this will answer a few questions. I 'think" it could be done, but as I said earlier, at the time I was reluctant to get into something I know nothing about. My recollection is that I looked at the overdrive housing, where it joins the back of the transmission and there seemed to be too little meat there to machine off to allow the rear of the shifter to clear... Anyway, here are a few pic's to illustrate...[​IMG]

    This pic (below) shows the overdrive height change at the rear of the trans cover

    [​IMG]

    the shifter mechanism...this is the problem, er...opportunity depending on your opinion

    [​IMG]

    from the bottom.
    [​IMG]

    I'm not sure, but it appears that the shafts that slide into the rear of that housing need most of the length of the casting. It may be possible to shorten the housing at the rear a little but I don't think it'll clear the overdrive casting.

    s_f_l
     
  8. Mr48chev
    Joined: Dec 28, 2007
    Posts: 28,579

    Mr48chev
    ALLIANCE MEMBER

    Minus the OD the Ford trans converted to top side shifter is a pretty common Jeep mod from what I pick up from the Jeep guys around here. I think that there was one of those behind my flathead in the Jeep Wagon it came out of.

    Any specific reason that the raised part of the case (s) for the od can't be massaged a bit to clear the shifter? I can't tell how much clearance you need but that might be doable if it's only part of the design of the casting and not there for specific reasons related to the internals of the od setup.
     
    Last edited: Nov 25, 2013
  9. Magnus B
    Joined: Jun 19, 2005
    Posts: 886

    Magnus B
    Member

    Damn. I've been looking for one of those shifters for a long time. Do you have more?

    //Magnus
     
  10. anthony myrick
    Joined: Sep 4, 2009
    Posts: 7,165

    anthony myrick
    Member

    got two of those trans and want to do the same. Keep us posted
     
  11. iroc409
    Joined: May 24, 2012
    Posts: 93

    iroc409
    Member

    Wow! Thanks for all the great info in the thread. It looks like with some work it's doable.

    Unfortunately, I think I was mis-informed. :( I was out looking at the transmission yesterday, and I don't think it's a T-86 after all. The top cover has the same 6 bolts, but it is shaped slightly different. It looks more like a picture I found of a T-90 from a Scout. I can't find any markings on the transmission itself that tells me what it is. The overdrive is stamped R10.

    The transmission has the IH logo stamped in it. From my factory manuals, I think it might be an IHC "HDS" transmission--but I have yet to find _anything_ on it. I don't know if it's similar to other BW's or what.

    Damn. I should have just bought a SBC. :eek:
     
  12. anthony myrick
    Joined: Sep 4, 2009
    Posts: 7,165

    anthony myrick
    Member

    I have a 6 bolt top shifter from a jeep if you need any measurements
     
  13. rowan
    Joined: Oct 31, 2013
    Posts: 4

    rowan
    Member
    from NJ

    Go to studegarage.com and you will find details on the conversion.
     

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.