Transmission Fluid Question

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Nov 23, 2010 | 11:59 PM

aj1988

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Melting Slicks

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From: The Colony Tx

Transmission Fluid Question

If you are replacing a transmission but keep the old TC how much fluid do you need before startup? I found instructions in a Haynes manual (since I also have the FSM I use the Haynes for the pictures) that says 23 pints. Haven't been able to find anything for how much is in the TC.

And if anyone wants, I am putting all the nuts and bolts I pull into baggies and putting the size on them, I will post where the nuts/bolts go and the wrench/socket size needed to turn them when I get finished.

Nov 24, 2010 | 10:10 AM

onedef92

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From: Fort Knox, KY

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Are you replacing the old fluid in the TC, too?

Nov 24, 2010 | 10:23 AM

383vett

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From: moraga ca

On my car (4l60e) replacing a new tranny with the old converter is about 8 quarts. New tranny with a new converter is about 11 quarts.

Nov 24, 2010 | 12:50 PM

aj1988

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Melting Slicks

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From: The Colony Tx

The transmission I am replacing only has about 1000 miles on it, blown front seal I think, so I will probably just leave the fluid in the TC.

Nov 24, 2010 | 05:51 PM

c4cruiser

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From: Lacey WA RVN 68-69

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I would take the car to a reputable shop and have a full trans flush done along with a new filter. The flush will swap out all of the old fluid.

Nov 24, 2010 | 05:58 PM

samsonb

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I recommend the Felpro rubber gasket. No gasket mess to clean up next time.

Nov 24, 2010 | 08:14 PM

aj1988

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From: The Colony Tx

The new filter came with the rubber gasket. I am going to drain the trans that is going in and change the filter. I know the fluid in the original tranny is still a nice shade of red.

Nov 24, 2010 | 10:27 PM

kenv

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From: levittown pa. usa Even a bad day with my `Vette, is better than a good day at work

St. Jude Donor '10

I changed the fluid in the TC in my `87 by draining the trans, changing the filter, & then got all the fluid out of the tc by using the return line at the radiator. I just kept adding a gallon of fluid to the trans for every gallon that came out of the return line, until the fluid coming out of the line was bright red. Its easy, all you have to do is hook a rubber hose to the return line, start the car & let it idle- & let the dirty fluid fill (in my case) a gallon container. Shut the car down, empty the container, put a fresh gallon into the trans, & repeat the process until the fluid coming out is clean.