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  1. #1
    Chief "ImaGunna'er" sport454's Avatar
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    Moving vent location on a 32rh transmission.

    I took some pictures of me relocating the breather hole on the transmission out of our TJ. It's a version of the TF999 and isn't the only Dodge/Chrysler transmission that has the factory vent location in the top of the front pump.

    When I first found out the vent was behind the torque converter in the top of the front pump I was confused as to why anyone would do this. Especially in a Jeep.

    This shows the vent hole in the front pump.

    ImageUploadedByTapatalk1430978305.684797.jpg

    After pulling the front pump. I used a thin piece of cardboard and covered it with grease to catch the aluminum shavings that would normally fall into the transmission when drilling the hole in the top of the case to relocate the vent. I slid it in as far as I could over the front band.

    ImageUploadedByTapatalk1430978604.245442.jpg

    ImageUploadedByTapatalk1430978373.281944.jpg

    ImageUploadedByTapatalk1430978656.209373.jpg

    I then drilled the hole using a 11/32 drill bit. You can see the aluminum shavings stuck to the paper through the hole.

    ImageUploadedByTapatalk1430978700.847230.jpg

    This is the tap I used to thread the hole in the case for the new vent location.

    ImageUploadedByTapatalk1430978604.245442.jpg

    It's a 1/8-27 tap. Be careful to not thread the hole all the way through as you want the fitting to tighten in the case before it is hanging out the bottom.

    ImageUploadedByTapatalk1430978933.946886.jpg

    Use grease again here so the thread shavings will stick to the tap.

    ImageUploadedByTapatalk1430979390.028570.jpg

    This shows the threads cut into the case.

    ImageUploadedByTapatalk1430979448.905229.jpg

    You can see the shavings caught in the grease here.

    ImageUploadedByTapatalk1430979499.137348.jpg

    ImageUploadedByTapatalk1430979543.668706.jpg

    Here are the fittings I am using. 1/8 inch fine thread elbow with a 1/8 inch barbed nipple to slide my vent hose onto.

    ImageUploadedByTapatalk1430979562.498996.jpg

    Using thread sealing tape I screwed the elbow into the case until tight and pointing to the drivers side of the vehicle.

    ImageUploadedByTapatalk1430979679.211326.jpg

    ImageUploadedByTapatalk1430979761.357583.jpg

    Then using thread tape again to seal the threads on the nipple, I screwed it in tight.

    ImageUploadedByTapatalk1430979837.075365.jpg

    Here's a picture of the hole with the fitting screwed in taken through where the front pump bolts in.

    ImageUploadedByTapatalk1430979899.574298.jpg

    Now comes the welding up of the vent hole in the pump.
    [b]Be very careful not to overheat the pump causing it to warp. [\b]

    You will need to split the front pump in two by removing the bolts on the back side of it.

    Be sure to remove the rubber ring seal from around the outside of the pump before applying heat to the pump during welding.

    ImageUploadedByTapatalk1430979967.612630.jpg

    You will be sealing this hole by welding it up.

    ImageUploadedByTapatalk1430980203.224400.jpg

    I clamped my pump half to a sheet of aluminum to keep splatter off of the back side of the pump surface and to act as a heat sink drawing heat out of the pump half as I welded.

    I also welded in short spurts to keep from over heating and causing warping. Weld a spot then wait a minute or so and do some more. Keep doing this until the hole is covered.

    ImageUploadedByTapatalk1430980255.469081.jpg

    When done, clean up the area around the weld front and back. I used brake cleaner to fill the passage on the back side of the pump to assure there was no leakage through the weld.

    ImageUploadedByTapatalk1430980459.183746.jpg

    Your ready to reassemble the front pump. I used long 5/16 bolts to assure the pump holes were lined up while bolting the front pump back together. I also used the long bolts to line up the pump as I installed it back in the case.

    All that's left is installing the transmission back in and running a vent hose up high to keep water out.

    Congratulations, if you off road your vehicle and happen up on a deep water crossing you just saved yourself a costly transmission repair.

  2. #2
    Administrator Hobie's Avatar
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    Nice write up. I need to do a write up on something.


    You better watch where you're going and remember where you been.

  3. #3
    Chief "ImaGunna'er" sport454's Avatar
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    I'd been needing to post that up. It's be a while since I'd done one. The last one was on swapping input gears on a np205. It's on the tech page. I'll add this one to it when I start on the web page again.

  4. #4
    I don't think I can make it. Hollywood's Avatar
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    Wow that's good information. Where has this been hiding all my life.


    Sent from my iPhone using Tapatalk
    The artist formerly known as Rock Jeep.

  5. #5
    Contributing Members MOMO's Avatar
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    According to Sport, it's been hiding behind the converter.

  6. #6
    Chief "ImaGunna'er" sport454's Avatar
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    The most terrible place it could ever be. Lol

  7. #7
    Contributing Members MOMO's Avatar
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    It's a jeep thang.......HAHAHAHAHAHAHA.

  8. #8
    Chief "ImaGunna'er" sport454's Avatar
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    Quote Originally Posted by MOMO View Post
    It's a jeep thang.......HAHAHAHAHAHAHA.
    You are right!!

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