C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

How Much Tranny Fluid?

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Old Aug 14, 2010 | 01:05 AM
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Default How Much Tranny Fluid?

Ive searched and read that for my 4+3 I need 80w90 and Dextron II-just not sure how much of each. Anyone know for sure?
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Old Aug 14, 2010 | 02:11 AM
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Not sure the quantity but you don't have to use Dexron II, in fact you would have a hard time finding it since they haven't made it since 1994. Dexron is backwards compatible for transmissions so you can use Dexron III or VI (likely) for your transmission
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Old Aug 14, 2010 | 12:23 PM
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Your Super T10 transmission holds 2 pints of gear oil. Your Doug Nash overdrive unit takes about 2 quarts of Dexron III ATF.
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Old Sep 29, 2014 | 02:32 PM
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Default refill overdrive transmission fluid

I want to change the fluid of the overdrive unit.

Maybe this is a stupid question - but I'm not sure how to refill the transmission fluid

My repair manual says: "fill the... to the bottom of the plug hole in the left side of the unit."

Does that mean I fill in the new oil into the oil pan before I attach the pan again? Is there a mark inside the pan? (plug hole)

I've never done this before. Thanks for your help
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