4WD 4L60E to 4WD 4L80E swap

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04-12-2018, 10:59 AM

Trentv

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4WD 4L60E to 4WD 4L80E swap

Had a few questions. I've got an 03 Silverado single cab 4WD. I'm building my motor and figured I'd go ahead and swap the 4L80E into it. Already got stalls and whatnot picked out. Not sure what all is necessary to fit the 4L80E such as front and rear driveshafts. Will both have to be modified?

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04-12-2018, 11:50 AM

ACAMS

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I would like to know too ..... I think we need an adapter to the transfer case.

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04-12-2018, 04:19 PM

Trentv

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Not sure. I thought at first I'd need a different tailshaft but I've heard you can change just the gasket or seal between the trans and transfer case.

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