4l60e to 4l80e
Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
There are dozens (hundred?) threads in this forum on swapping from a 4L60E to a 4L80E. Search for "4L80E swap".
The basics:
Yes, it will bolt up.
It is much more durable especially in a heavy vehicle.
You need a different torque converter.
Not sure about the driveshaft length, but shortening only costs about $100.
You need a software change to your PCM called a "segment swap" or a converter, and/or a minor change to the trans wiring harness. The PCM changes are described in this multi-year thread, including the latest news:
https://ls1tech.com/forums/automatic...-required.html
Look over the other threads and ask any specific questions. Good luck!
The basics:
Yes, it will bolt up.
It is much more durable especially in a heavy vehicle.
You need a different torque converter.
Not sure about the driveshaft length, but shortening only costs about $100.
You need a software change to your PCM called a "segment swap" or a converter, and/or a minor change to the trans wiring harness. The PCM changes are described in this multi-year thread, including the latest news:
https://ls1tech.com/forums/automatic...-required.html
Look over the other threads and ask any specific questions. Good luck!
