NP241 seal and gasket (now with picture)

Discussion in 'Engine/Drivetrain/Suspension' started by Dodge Thingie, Nov 3, 2004.


  1. Dodge Thingie

    Dodge Thingie
    Expand Collapse
    New Member

    396
    0
    Trophy Points:
    0
    Does anyone know where I could find a rear seal (where the yoke goes in) for a NP241 t-case for a dodge? Also, the gasket between the main t-case housing and the a$$-end?



    Thanks



    I'm in desperate need of these, and yes, I did a search
     

  2. SalvagExpert

    SalvagExpert
    Expand Collapse
    New Member

    1,594
    0
    Trophy Points:
    0
    there is no seal between the 2 parts of the case they are sealed with a RTV type sealant, the output shaft seal is (chicago rawhide part #18662) available at any parts store.
     

  3. Madd Ramm

    Madd Ramm
    Expand Collapse
    New Member

    12,643
    0
    Trophy Points:
    0
    :withstupid: There is no seal between the t-case and tranny mating surfaces. If you have fluid coming out of there, you have a rear tranny seal leaking.



    Check the Dodge forum on my tranny write up...I showed how the tranny seal is replaced.



    The output seal should be able to find at most any autoparts store.
     
  4. Dodge Thingie

    Dodge Thingie
    Expand Collapse
    New Member

    396
    0
    Trophy Points:
    0

    Autozone was useless. Didn't have it.

    What do you mean there is no gasket between the main housing and the rear end of a t-case? I was told I can't put silicone there cause ATF will eat through silicone.



    MADD, are you talking about a transmission seal?



    EDIT: I went and read that thread. I'm not talking about that. My tranny is solid. I need to make a gasket between the tranny and the extension housing, but other than that I'm good. All my real problems are on the transfer case.



    If you guys say I should be able to find the output seal, I'll keep looking, but it's kinda hard when your neurologist says you can't drive for a few months...I'm epileptic, and I had two seizures in four months. :wall: :rotfl:
     
  5. Tim

    Tim
    Expand Collapse
    New Member

    2,189
    0
    Trophy Points:
    0
    Go to carquest or napa and give them that part number, or let me know, I'll get you one (shipping would suck though).
     
  6. SalvagExpert

    SalvagExpert
    Expand Collapse
    New Member

    1,594
    0
    Trophy Points:
    0
    first thing like madd said, tranny fluid should not be in that area anyway so theres no reason for it to eat through the silicon... if your getting fluid there you have to fix the other seals.



    second there are sealants that work fine with transmission fluid, i use an orange stuff from the toyota dealership made for transaxles which works great.
     
  7. Dodge Thingie

    Dodge Thingie
    Expand Collapse
    New Member

    396
    0
    Trophy Points:
    0
    You sure? All my friends say the transfer case needs ATF...but then again my friend Bobby said gearlube.



    Ok, say I put ATF. I should be able to get away with silicone between the main t-case housing and the a$$end, right? SalvageExpert, it's the rearend you sent me. What, like 3 months ago? I'm still on it... :rotfl:



    You guys forced me to whip out Adobe Photoshop...don't worry, I'll leave any "talent" at home :bigthumb:
     

    Attached Files:

  8. SalvagExpert

    SalvagExpert
    Expand Collapse
    New Member

    1,594
    0
    Trophy Points:
    0
    the np241 is MADE TO RUN with ATF, gear lube can be used on extremely worn to cases to help keep them quite.



    the adapter peice between the transmission and transfer case has no gasket available. never was a gasket even from the factory. it was sealed with silicone



    the rear output housing has a gasket but i dont know where to find that, i use silicone on that as well.



    and the output seal is available at advance auto, parts america and autozone. chicago rawhide #18662 or National seal #3946
     
  9. Dodge Thingie

    Dodge Thingie
    Expand Collapse
    New Member

    396
    0
    Trophy Points:
    0
    Oops! My bad! I meant to put "say I put ATF." I fixed it. Sorry.



    and ATF will not eat through silicone, right?



    Autozone (at least the one near me) does not have the seal. They're useless. But the O'Reilly's does :bigthumb: . So silicone between...

    the tranny and extension,

    the extension and t-case,

    and the t-case and it's rearend?



    And just go buy that seal, right?
     
  10. SalvagExpert

    SalvagExpert
    Expand Collapse
    New Member

    1,594
    0
    Trophy Points:
    0
    yes but use a RTV sealant that is resistant to gasoline and solvents...



    like i said i use an orange goo from the toyota dealer made for transaxles. i think permatex makes a good sealant that works the same but i forget what its called.
     
  11. K5Chris

    K5Chris
    Expand Collapse
    New Member

    6,243
    0
    Trophy Points:
    0
    i used rtv on my tcase, and i even patched a leak on a seam, and it's held up very well.
     
  12. Dodge Thingie

    Dodge Thingie
    Expand Collapse
    New Member

    396
    0
    Trophy Points:
    0
    I got everything I need. The only things left to do is install the t-case and the d-shafts. Everything else is already on. But I can't lift the t-case alone :wall: :rotfl: :rotfl:



    Ain't that some luck?
     
  13. SalvagExpert

    SalvagExpert
    Expand Collapse
    New Member

    1,594
    0
    Trophy Points:
    0
    you need to go to the gym.... a 241 is not a heavy case...
     
  14. Madd Ramm

    Madd Ramm
    Expand Collapse
    New Member

    12,643
    0
    Trophy Points:
    0
    :withstupid: I have swapped these things dozens of times. Sit under it cross-legged and put it in your lap. The sharp points might hurt a little bit, but at least you can get it halfway there and then lift it up like a back of grocceries. Then, kinda put your shoulder up under the rear output yoke to help with the weight while you position it.
     
  15. Dodge Thingie

    Dodge Thingie
    Expand Collapse
    New Member

    396
    0
    Trophy Points:
    0
    I took it off, swapped out the rear end with it still full of ATF. It's full of fluid right now. So yes, it is kinda heavy. :flipoff:



    Ok, maybe I should be able to lift that... :rotfl: :rotfl:
     

Share This Page