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6l90e to 4l80e swap transfer case questions

Broke2500

By Broke2500
in 2000-2014 Silverado & Sierra HD

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Broke2500 New Member

Broke2500

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Hello,

So my trans blew and I'm considering buying a 4l80e to swap in place of my 6l90. 

I have a 2011 silverado 2500hd 6.0 with a manual transfer case. Is there any way to make my transfer case work with a 4l80e and if so would I need custom drive shafts?

Due to cost of rebuilding and future power goals I would like to make the 4l80e work. 

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Formulabruce Enthusiast

Formulabruce

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Get a good used 6L90. You'll need a harness and a controller to run the 4l80, and the link to the current truck harness will not match. Even making the 4L80 a manual shifting trans will still cost more and then youll still need a lock up connection.

 Call these guys. The 6L90 IS actually a more rugged transmission.  whats wrong with it?

 https://www.justchevytrucks.com/

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