4L60E to 4L80E Wiring Swap
#1
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Edited: all info on this post..
![Name: 4l80eWiringConversion.jpg
Views: 63745
Size: 114.1 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139809d1501888222-4l60e-4l80e-wiring-swap-4l80ewiringconversion.jpg)
How to swap wires.
Transmission connector:
![Name: Transconnector.jpg
Views: 34028
Size: 129.5 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139810d1501888222-4l60e-4l80e-wiring-swap-transconnector.jpg)
Remove cover:
![Name: removecover2.jpg
Views: 24818
Size: 81.4 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139811d1501888222-4l60e-4l80e-wiring-swap-removecover2.jpg)
![Name: removecover3.jpg
Views: 25058
Size: 96.4 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139812d1501888222-4l60e-4l80e-wiring-swap-removecover3.jpg)
Remove white end:
![Name: removewhitepeice.jpg
Views: 24844
Size: 93.9 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139813d1501888222-4l60e-4l80e-wiring-swap-removewhitepeice.jpg)
Small knife works good to bend the lil grey clip back to remove the ends:
![Name: knivetoremove.jpg
Views: 24957
Size: 92.1 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139814d1501888222-4l60e-4l80e-wiring-swap-knivetoremove.jpg)
Put the white piece back on, the grey cover, and your finished, that easy.
![Name: vola.jpg
Views: 29163
Size: 120.7 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139815d1501888222-4l60e-4l80e-wiring-swap-vola.jpg)
After all that work,,, i think this 2004 harness is already a 80E harness![Bang Head](https://www.performancetrucks.net/forums/images/smilies/LS1Tech/gr_banghead.gif)
![Name: 4l80eWiringConversion.jpg
Views: 63745
Size: 114.1 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139809d1501888222-4l60e-4l80e-wiring-swap-4l80ewiringconversion.jpg)
How to swap wires.
Transmission connector:
![Name: Transconnector.jpg
Views: 34028
Size: 129.5 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139810d1501888222-4l60e-4l80e-wiring-swap-transconnector.jpg)
Remove cover:
![Name: removecover2.jpg
Views: 24818
Size: 81.4 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139811d1501888222-4l60e-4l80e-wiring-swap-removecover2.jpg)
![Name: removecover3.jpg
Views: 25058
Size: 96.4 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139812d1501888222-4l60e-4l80e-wiring-swap-removecover3.jpg)
Remove white end:
![Name: removewhitepeice.jpg
Views: 24844
Size: 93.9 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139813d1501888222-4l60e-4l80e-wiring-swap-removewhitepeice.jpg)
Small knife works good to bend the lil grey clip back to remove the ends:
![Name: knivetoremove.jpg
Views: 24957
Size: 92.1 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139814d1501888222-4l60e-4l80e-wiring-swap-knivetoremove.jpg)
Put the white piece back on, the grey cover, and your finished, that easy.
![Name: vola.jpg
Views: 29163
Size: 120.7 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139815d1501888222-4l60e-4l80e-wiring-swap-vola.jpg)
After all that work,,, i think this 2004 harness is already a 80E harness
![Bang Head](https://www.performancetrucks.net/forums/images/smilies/LS1Tech/gr_banghead.gif)
![Name: P9250024.jpg
Views: 26272
Size: 118.1 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139816d1501888222-4l60e-4l80e-wiring-swap-p9250024.jpg)
Last edited by nonnieselman; 09-29-2009 at 09:17 PM.
#2
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The 60e has 13 wires in the connector..
![Name: 4L60Ewiring.jpg
Views: 40338
Size: 36.8 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139817d1501888222-4l60e-4l80e-wiring-swap-4l60ewiring.jpg)
The 80e has 11 wires in the connector..
![Name: 4L80Ewiring.jpg
Views: 38573
Size: 30.6 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139818d1501888222-4l60e-4l80e-wiring-swap-4l80ewiring.jpg)
I put both the pics together so it does look like removing 2 wires and moving one of them should do the trick.. i just need a diagram of a 80E to verify.
![Name: 4L60Ewiring.jpg
Views: 40338
Size: 36.8 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139817d1501888222-4l60e-4l80e-wiring-swap-4l60ewiring.jpg)
The 80e has 11 wires in the connector..
![Name: 4L80Ewiring.jpg
Views: 38573
Size: 30.6 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139818d1501888222-4l60e-4l80e-wiring-swap-4l80ewiring.jpg)
I put both the pics together so it does look like removing 2 wires and moving one of them should do the trick.. i just need a diagram of a 80E to verify.
![Name: transwiring.jpg
Views: 40229
Size: 50.0 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139819d1501888222-4l60e-4l80e-wiring-swap-transwiring.jpg)
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What you said looks correct for your model year. Don't think you have to bother pulliing # 42 Red as there will be nothing connected to it on the trans side anyway. Just move the #79 Blue to #2 Red.
Or you could just pull pins S (WHT) and U (BRN) at the trans connector, move the BRN wire to the S position, and leave the white disconnected (or put it in the now unused U position for safekeeping).
Plus you will require the additional AT ISS sensor connected to pins 22 and 23 of your red PCM connector. Pin A to Pin 22, Pin B to Pin 23.
Let us know how it works out.
Or you could just pull pins S (WHT) and U (BRN) at the trans connector, move the BRN wire to the S position, and leave the white disconnected (or put it in the now unused U position for safekeeping).
Plus you will require the additional AT ISS sensor connected to pins 22 and 23 of your red PCM connector. Pin A to Pin 22, Pin B to Pin 23.
Let us know how it works out.
![Name: SpeedSensor.jpg
Views: 24422
Size: 13.9 KB](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139820d1501888222-4l60e-4l80e-wiring-swap-speedsensor.jpg)
Last edited by DrX; 03-09-2008 at 03:24 PM.