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Too much fluid in the trans case

Discussion in 'The Garage' started by RAY, Dec 29, 2004.

  1. RAY

    RAY 1/2 ton status Premium Member

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    My front input seal went bad and tranny fluid leaked into the transfer case. Now It is making a groaning noise like gears meshing together. I was wondering if running with too much fluid could damage or cause something to shift in the t-case to cause this new noise. I am thinking about rebuilding it, but would like to have an idea if a rebuild would solve my problem or just waste my time. I have already replace the seal, but still have the noise. Any help would be greatly appreciated.

    Thanks,
    Ray
     
  2. Cricket

    Cricket 3/4 ton status

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    Did you drain the t-case and replace it with new fluid or is the contaminated oil still in it?

    Kind of confusing? What trans and t-case are you running?
     
  3. ntaj*ep

    ntaj*ep 1/2 ton status

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    Assuming you have a NP205 T-case and the ATF thinned out your gear oil. If so replace the o-ring and refill with gear lube....
     
  4. Bhintz

    Bhintz 1/2 ton status

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    sorry to highjack but what type of lube do you put in a np 208
     
  5. dhdescender

    dhdescender 1/2 ton status

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    ATF won't hurt a 205, they ran them in the later 80's.

    My experience in rebuilding them is that with ATF there seems to be a bit of wear on the teeth, whereas with gear oil no marks occur.

    Just drain it and fill it again with 90wt.
     
  6. diesel4me

    diesel4me 1 ton status Premium Member

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    NP208 fluid

    The NP208 is suppossed to use dextron ATF--but many I've serviced had 80-90w gear oil in them,not the correct fluid,but it didnt seem to do any harm --but then,I didnt have the cases apart,I just changed fluids(and I put ATF back in!).:crazy:
     
  7. ntaj*ep

    ntaj*ep 1/2 ton status

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    Prove it.
    ATF will harden the seals in the case and create leaks, also as you addressed cause premature wear.....
     
  8. RAY

    RAY 1/2 ton status Premium Member

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    Sorry of the confusion, I am running a 700R4 and a 208. I know it is a chain drive, the noise it is making sounds like gear meshing together. I am hoping someone else might have had this problem.
     

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