You should have the 4L60/65 or 80/85 E transmission. You can swap in any other E transmission but if it is out of a different body style then you may have some wiring alterations to make but it should fit with no issue.
Here is a video that will help with this:
https://www.youtube.com/watch?v=3vJAojsrfuU
Below you will find the process from the manual that will help with this the replacement.
Let us know if you have other questions. Thanks
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Friday, May 7th, 2021 AT 8:50 AM