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  1. #1

    Default I have never added or changed fluid in my transfer case.... 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?
    '95 Chevy Suburban 4x4 LS 5.7L

  2. #2


    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.

    2005 Chevy Silverado Z71 Crew Cab
    6" Skyjacker lift w/Edlebrock dual front remote resoviour shocks, single rear remote. Rancho skid-plate.
    17" x 9" M/T Classic Lock Wheels, 35" BFG A/T or M/T tires
    4.10 PercisionGears w/factory locker, T/A Performance rear-end cover
    Banks CAI intake, ported throttlebody, JBA coated headers, over-sized Magnaflow cats, Magnaflow cat back exhaust, Diablo tuned
    B&M aluminum deep transmission pan
    Warn brush guard w/Warn 9.5 XP winch, PIAA bulbs, Line-X bedliner, AWS Black tool chest, Extang tonneau cover
    Weather Tech floor mats
    Cover-Craft seat covers
    Dash mat cover
    Formula One window tint
    One black Lab in rear seat.

  3. #3

  4. #4


    Quote Originally Posted by silveradotrailblazer View Post
    Its is ATF. I use Mobil 1 synthetic ATF fluid.[COLOR="Silver"]
    What he said.

    At least you had some leak out. These cases are often neglected till they are dry.
    When you hear hoofbeats, look for horses not zebras.

  5. #5


    Quote Originally Posted by 2COR517 View Post
    At least you had some leak out. These cases are often neglected till they are dry.
    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. #6


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

  7. #7


    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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