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I have never added or changed fluid in my transfer case....

Discussion in 'General Chevy & GM Tech Questions' started by bimmer84, Jun 8, 2011.

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  1. bimmer84

    bimmer84 New Member

    ..so I now need to add some after leaking some out the back of it while changing the U-joints. What came out was pink in color. I expected gear lube in a transfer case but this looked like ATF.

    What fluid should be used?
  2. silveradotrailblazer

    silveradotrailblazer New Member 1000 Posts 100 Posts

    Its is ATF. I use Mobil 1 synthetic ATF fluid.

    ---------- Post added at 04:06 PM ---------- Previous post was at 04:04 PM ----------

    The newer transfer cases use the AutoTrac ll fluid.
  3. bimmer84

    bimmer84 New Member

    Thank you sir.
  4. 2COR517

    2COR517 New Member 1000 Posts 100 Posts



    What he said.

    At least you had some leak out. These cases are often neglected till they are dry.
  5. bimmer84

    bimmer84 New Member

    I lucked out. I don't know if it was serviced before I bought it a 97k miles, but it now has 207k and this is the first time I looked at it.

    It is a 95 suburban, so I assume a standard GM ATF is indicated, unless I switch it to synthetic?
  6. silveradotrailblazer

    silveradotrailblazer New Member 1000 Posts 100 Posts

    I use the synthetic in the 'Burb because you do have a tendency to forget about the transfer case.
  7. 2COR517

    2COR517 New Member 1000 Posts 100 Posts

    If it lasted that long, it was probably synthetic. Conventional Dino ATF has a problem with "misting off". One of the reasons GM changed the fluid spec to synthetic.

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