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Transmission pans

Discussion in 'The Garage' started by UPS, Mar 4, 2007.

  1. UPS

    UPS 1/2 ton status

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    What do you run for an automatic trans pan?
    I have a TH400.
    Should I get a deep aluminum one, deep steel one, or a stock one. I have a Derale deep steel pan. This has the tubes running through it so air can blow through to cool it. I don't like it because it fills with mud and i think it will rust through.

    Thanks,
    Mike
     
  2. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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  3. BigEasy

    BigEasy 1/2 ton status

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    I like to use B&M's deep steel pans. I'm not too crazy about using aluminum pans on a 4x4. If it smacks a stump or a rock the steel pan will dent but the aluminum pan will crack. Even if a hole gets punched in the steel pan you can at least try to weld a patch on it.
     
  4. resurrected_jimmy

    resurrected_jimmy 1/2 ton status

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    I agree with this logic and it is probably the best option. However I am always looking for ways to improve heat transfer in an auto tranny. I run a B&M finned aluminum pan on my TH350. I don't run in heavy rock so I'm not too worried about the pan getting whacked. My T-case cross-member and skid plates will get me high centered before I worry about the trans pan.
     
  5. UPS

    UPS 1/2 ton status

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    Do you have one of these? If you do how thick is it? Is it good quality?

    Thanks,
    Mike
     
  6. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    Nope, not yet. I did quite a bit of searching for cast TH400 pans on the web and that was one of the better deals I found. I've got 3-4 other things on my "K5 to-do list" ahead of building my th400... so buying the pan has been on the back-burner.

    j
     
  7. UPS

    UPS 1/2 ton status

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    What made me wonder about it is it says it is a fairly heavy casting. I wonder how thick it really is?

    Thanks,
    Mike
     
  8. resurrected_jimmy

    resurrected_jimmy 1/2 ton status

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    I was truely surprised at how thick they are. A full 3/8 inch thick from what I remember.
     
  9. UPS

    UPS 1/2 ton status

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    I just bought a B&M deep aluminum pan.

    Thanks,
    Mike
     
  10. UPS

    UPS 1/2 ton status

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    Have you seen one of the bte deep aluminum pans?

    Thanks,
    Mike
     
  11. resurrected_jimmy

    resurrected_jimmy 1/2 ton status

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    yep. I like it.
     
  12. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    it seems pretty thick to me based on the ebay pics. If you look where the drain plug hole is, the "face" of the hole is counter-sunk a little bit into the pan... and then there is the hole itself, which is deep enough for enough threads to hold a drain plug. My guess is, the rest of the pan has got to be 3/8" thick or so. Only way it could be thinner would be if the material was thickest at the drainplug, which is possible, I suppose. :dunno: looks plenty beefy to me.

    j
     

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