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-   -   6L80 to 6L90 Swap (https://www.performancetrucks.net/forums/gm-drivetrain-suspension-22/6l80-6l90-swap-527656/)

blownescalade62 03-19-2014 08:44 AM
6L80 to 6L90 Swap
 
I would like feed back from ones that have swapped from 6l80 transmission to the 6l90. I'm looking at one from a 2007*Chevy Silverado*K2500HD 4wd. This will be going into my 2011 Escalade AWD. What is needed for the swap?

blownescalade62 03-21-2014 08:36 AM
bump Anyone

TrueBlueGTO 03-21-2014 07:38 PM
You will have to change the TCM to a 2010+ unit.

blownescalade62 03-22-2014 04:40 AM
thanks

Seanh 06-28-2015 04:17 PM
They use the same cross member, but with the 90 being longer do you need longer front and shorter rear shafts then? Any other changes? I am leaning towards doing this myself.

TrueBlueGTO 07-03-2015 02:00 PM
Originally Posted by TrueBlueGTO (Post 5203170)
You will have to change the TCM to a 2010+ unit.
Apparently there is a new TCM out there that is compatible with all programming from 07-15. So run the TCM through your parts department first before spending money to get a new one.:popcorn:

Smokymance 06-08-2016 07:43 AM
Did you ever complete this swap?

blownescalade62 12-11-2016 03:36 PM
Originally Posted by Smokymance (Post 5364684)
Did you ever complete this swap?
No I just went with a built 6L80 from Circle D stronger then a 90 now.


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