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Untested 4l80, what to do next?

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Old Jun 25, 2018 | 11:30 PM
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Default Untested 4l80, what to do next?

I’ll be picking up a 4l80 from a tow yard, it’s in unknown condition. What would you do while it’s out? Besides checking the fluid how else can you verify the condition. Thanks.
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Old Jun 26, 2018 | 06:13 AM
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Take it apart.
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Old Jun 26, 2018 | 09:37 AM
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HD2 it and send it.
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Old Jun 26, 2018 | 10:56 AM
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Is there any special tools needed to rebuild it? I’ve looked at some posts and it seems pretty straightforward.
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Old Jun 26, 2018 | 01:41 PM
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Bushing drivers. These seem to eat bushings for some reason.

For what it's worth this 4L80E drove fine.



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Old Jun 27, 2018 | 06:42 AM
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Just some thoughts, are you OK pulling it back out if its no good. If you buy a new
converter and the trans is no good, it should be flushed, same with cooler, lines.
They are not bad to rebuild, ID'ing if a part is bad or not is sometimes tricky.
As said, bushing drivers, etc, plus the 4th clutch is tricky w/o the right tool.
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