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T15 transmission

Discussion in 'Early CJ5 and CJ6 Tech' started by Slifter, Jan 27, 2010.

  1. Jan 27, 2010
    Slifter

    Slifter Big Willy

    Vancouver Island
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    Is the T15 the only jeep transmission that is 10" long?

    I had to deduce that I have a T15 from its length since it is still in the jeep and I cannot see the casting numbers or measure splines.
     
  2. Jan 27, 2010
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    Better double check that if you have an Early CJ, which I'm guessing you do as that's the section you posted in. The T-15 was never used stock in CJ's '71 and older. Was only used in CJ's during the Intermediate years, '72-'75.
    Someone could have installed one, but don't id the transmission just because of it's length. You need more info than that. Climb under there and if necessary scrape the oil and grease off and ck for identifying #'s. If you can post a pic up that's extremely helpful. If you can post a pic of the shifter top housing of the tranny I can probably identify what you have.
     
  3. Jan 28, 2010
    Slifter

    Slifter Big Willy

    Vancouver Island
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    Thanks nickmil,

    This Jeeps is a bitsy, but the vin is for a '66 so i have been posting here!

    Unfortunately, the original floor has been rock guarded, preventing me from removing the access panel to get a clear shot. What I can see is 8 bolts holding the top cover down, and what looks like a set of numbers stamped above and parallel to the shifter that reads either 7-75 or 2-75 or Z-75... lol.

    The transmission has the two side bosses and is mated to the dana 20 tcase, and is 10" in length which led me to believe that this is a T15. I was not going on length alone. According to novak's website, the t14 is a bit shorter.

    The reason for my curiosity is because I completely destroyed my bell, and am looking for a replacement. It's a bit out of my knowledge base, but that's how you learn I guess...

    Everything looks stock until you get to the adaptor plate from the bellhousing to the motor. There is a factory adaptor plate between the trans and bellhousing that looks like it adapts a bop bell to the jeep trans.

    The motor is a transplanted olds 232, this I KNOW as I have id'd the casting numbers from the NHRA website.

    Next question...

    Is it a huge pain in the *** to remove the trans from underneath instead of through the floorboards? Somone rebuilt the floor, in aluminum... mostly one piece...
     
    Last edited: Jan 28, 2010
  4. Jan 28, 2010
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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    I've done the transmission R&R on my driveway, using only the factory scissors jack and some cribbing (for under the bell). You can do it. I did not consider pulling it up through the floor. A $40 floor jack and some jack stands would make it really easy.
     
  5. Jan 28, 2010
    Walt Couch

    Walt Couch sidehill Cordele, Ga. 2024 Sponsor 2023 Sponsor 2022 Sponsor

    cordele, Ga.
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    :iagree:

    Have never drug one up through the floor. Jeep on 4 jack-stands gives ample room. A tag on my T-15 reads 999313 13-07-011 If that helps.. Walt.
     
  6. Jan 29, 2010
    Slifter

    Slifter Big Willy

    Vancouver Island
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    I misread someones post regarding trans removal, I guess they removed the floorboards to gain easier access to the linkage and shifter cover. I power washed, de-greased and took a real good look at what needed to be removed, it looks pretty straight forward. Pretty excited to get into this project, pics soon!

    Thanks for the info all.

    ~w
     
  7. Jan 29, 2010
    kaiser_willys

    kaiser_willys Well-Known Member

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    fwiw you would have to remove the transfer to even entertain the thought of coming out thru the floor. the back of the t-90 d18 combo is about a inch past the hole in the floor. by the time you slide it all back to clear the clutch, well you get the idea, may be even worse with the combo you have. taking out the floor board does make it easy to get to the bell bolts though:D
     
  8. Jan 29, 2010
    Slifter

    Slifter Big Willy

    Vancouver Island
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    Got the cover off, trans reads 13-07-097-901

    T15?
     
    Last edited: Jan 29, 2010
  9. Jan 29, 2010
    Walt Couch

    Walt Couch sidehill Cordele, Ga. 2024 Sponsor 2023 Sponsor 2022 Sponsor

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  10. Jan 29, 2010
    $ sink

    $ sink Gazillians of posts

    Virginia Bch
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    when I installed my T18, I used a gantry and dropped a cable through the floor opening to take the weight of the T18 while I moved it into place. no jack needed.
     
  11. Feb 1, 2010
    Slifter

    Slifter Big Willy

    Vancouver Island
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    A gantry is a good idea, especially since I am working outdoors on a piece of plywood. I might try "swinging" it into place.

    Actually had a guy with the bell I need contact me this weekend, he has one from a monza he's been hoarding for 15 years. $100 seems a bit steep... but what can you do when you live on an island.

    Can someone show me where the attach image button went?
     
  12. Feb 1, 2010
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    The one from the Monza may work but they use a funky cable clutch that you can't get cables for anymore (at least last time I checked). I have one in the '59 '5.
    I'd suggest getting a Jeep bellhousing. Might contact Hermtheoverdriveguy.com
    He sometimes has them for sale and can ship across the border. He does it regularly. He's in the Vancouver, WA area (actually Brush Prairie).

    The attachment button is long gone, since the site got hacked. What you need to do is save your pic to Photobucket or one of those types of sites then you can link it here and have it show up.
     
  13. Feb 3, 2010
    Slifter

    Slifter Big Willy

    Vancouver Island
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    That is disappointing news. Not surprising news either.

    This is my first transmission pull, and my first time removing the clutch also... I have learned quite a bit already. i.e, weight of a transfer case, importance of safety chains, etc... lol. It did come out, but there's a fair bit of gear oil on the floor.

    On to research the clutch removal... fun.

    ~w
     
    Last edited by a moderator: Jul 13, 2010
  14. Feb 4, 2010
    Slifter

    Slifter Big Willy

    Vancouver Island
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    Whoah got ahead of myself, better get the bell off first. This is of course the whole reason behind removing the transmission in the first place!

    http://s876.photobucket.com/albums/ab322/Slifter/

    There, pics. I'm doing this work while at work, on my coffee and lunch breaks. GOtta find out what bell this is so I can get a replacement. It is obv. not useable in it's current condition. Darn rocks in innocent hay fields.
     
  15. Feb 5, 2010
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    That is an Advance Adapters bellhousing or at least adapter on the back side. See if you can find the part # here:
    http://www.advanceadapters.com/

    Does the adapter come off or is it part of the bellhousing? Hard to tell from the pics. If that is all one piece then you may be looking at having to purchase one from them or doing a conversion.
     
  16. Feb 5, 2010
    Slifter

    Slifter Big Willy

    Vancouver Island
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    Yes it is an adaptor. It has 4 bolts on the outside, and four smaller allen key style fasteners surrounding the hole for the output shaft that hold the adaptor on. I still have to degrease the bell to find a number. I was hoping to have a shop repair the one I broke, if they can do it for $100-200. I will get the number at lunch to see if anyone out there has one I can buy.

    ~w
     
  17. Feb 5, 2010
    Slifter

    Slifter Big Willy

    Vancouver Island
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    number on the adaptor reads "aa cj 509," can't find it on their website...
     
  18. Feb 5, 2010
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    May be obsolete or they may have changed the number to a superseded #. The bellhousing looks like a stock CJ bellhousing and if the adapter is removeable then I would say it's just an AA adapter to the T-15. Should be able to find a stock CJ bellhousing somewhere. Just keep looking as they pop up from time to time. Look on Willystech.com as they pop up in the classifieds there as well.
     
  19. Feb 5, 2010
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

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    Hold on Slifter - I think you're missing the big picture here.

    This is a passenger car engine, a 3.8L (232 cid) Oldsmobile V6 (I presume). The Olds engine uses a standard GM bellhousing, called a BOP (Buick-Olds-Pontiac) bellhousing. The adapter plate is aftermarket (from Advanced Adapters), but the bellhousing came with the engine.

    The T-15 input shaft is long enough to allow a p[late adapter between the factory GM bellhousing and the transmission. No "special" bellhousing is needed.

    The plate is a special part, but you shouldn't care about that, since that's not the part you need.

    You need to go to a junkyard to replace the bellhousing. It's a junkyard part. Don't spend $200 to repair a common $50 bellhousing.
     
    Last edited: Feb 5, 2010
  20. Feb 5, 2010
    Daryl

    Daryl Sponsor

    Bonney Lake, WA
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    Got several of them 3 hours south of you.
     
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