4l60e to 4l80e conversion article from Four Wheeler

[Mike]

Excellent info, and they use Finish Line Transmissions.

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[NacIK]

I can only see page 60 and 62. There is nothing on shortening the rear driveshaft or re-pinning the electrical connector. Not to mention the PCM reflash.

 

[Mike]

Refresh it, it is working for me.

 

[Butch]

sticky

 

[Aareen]

Good job.
Thanks to all member of this forum.

 

[97c1500]

The 4L80E is great the only negative is the gas mileage

 

[98chevy4x4]

Where the 4l80e is just a hair longer do you have to get different driveshafts

 

[MUDDER TRUCKER]

i have the 4l80 in my tahoe and love it!!!

 

[Sully]

what I dont get is didnt the big blocks have the 4l80 from factory and why wouldnt they use the big blocks parts to make it work?

 

[oneluckypops]

If anyone is interested in this swap dont let there price tag scare you. It can be done ALOT cheaper and you do NOT need to buy alot of that parts that they did. In fact you do NOT even need to buy the jumper harness you can EASILLY Modify your factory harness to plug directly to the 80E. I have my Own write up on this swap if anyone is interested I will bring it over here.