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  1. #1
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    1988 white 4+3 coupe 99 Torch Red 6spd. coupe
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    Default !988 D/N 4+3 4spd

    Hi everyone it's been a while, My question..............What lubricant did the 88 4spd B/W Super T-10 trans. come with from the factory, it's too old for synthetics that leak. Local Chevy dealer did not find that info and neither can I..Any input will be app. Thanks
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  2. #2
    !988 D/N 4+3 4spd BigJimZ16's Avatar
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    Quote Originally Posted by muddywaters View Post
    Hi everyone it's been a while, My question..............What lubricant did the 88 4spd B/W Super T-10 trans. come with from the factory, it's too old for synthetics that leak. Local Chevy dealer did not find that info and neither can I..Any input will be app. Thanks
    According to this info the T10 should use 80wt lube...

    https://www.gmheritagecenter.com/doc...t-Corvette.pdf
    The only thing that you accomplish when you make something idiotproof, is breed a better grade of idiot,

  3. #3
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    The gearbox section takes a 75W90 gear lubricant.
    The overdrive section uses ATF.
    Hib Halverson

  4. #4
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    Thanks Hib, It's the gear box , is that 75w90 synthetic or otherwise and is the tranny considered a syncromesh? I've had issues with synthetic lubes leaking where there was no leak before. The straight gear lube says it for non-syncromesh trannies, I'm confused Thanks in advance

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