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4L60E to 4L80E Wiring Swap

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Old 04-21-2009, 02:53 AM
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What? the main connector has to be changed at the tranny.

The new input VSS is ran to the PCM
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Old 04-21-2009, 03:08 AM
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why is there so much trouble with the neutral safety switch? Should I just order a brand new 4l60e NSS and put it on the 80e while it's out?
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Old 04-21-2009, 06:44 AM
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Originally Posted by Parke10
which way did you end up doin it? at the tranny or at the pcm? which is easier?
as charcold said,
speed sensor is added @ pcm...no other option
harness plug-in connector is modified @ tranny...or a 60e to 80e adapter may be purchased
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Old 04-29-2009, 11:14 PM
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Originally Posted by GMCtrk
why is there so much trouble with the neutral safety switch? Should I just order a brand new 4l60e NSS and put it on the 80e while it's out?
What kind of prob you havin with the Neutral safety switch?
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Old 04-29-2009, 11:18 PM
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Originally Posted by Superado
as charcold said,
speed sensor is added @ pcm...no other option
harness plug-in connector is modified @ tranny...or a 60e to 80e adapter may be purchased
Think he is talkin about the main harness plug in. You can swap the wires for it at the pcm or swap them at the main harness plug in.
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Old 06-04-2009, 04:30 PM
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Originally Posted by Derek @ EDO
Nice writeup, I made a .JPG copy for quick board reference.
printed and on its way under the truck with me
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Old 06-04-2009, 04:40 PM
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Dont screw it up.....
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Old 06-04-2009, 04:47 PM
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Originally Posted by nonnieselman
Dont screw it up.....
dude, you know wiring is my kryptonite... I just dont have the patience for it. I guess with no pressure and pretty much no timeline I can handle this thing. but it sure would be easier if you were down here for me to watch do it
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Old 06-04-2009, 05:18 PM
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haha, its simple man. just gimme a call if you need some help.
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Old 06-20-2009, 09:53 PM
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If I could get some help it would be appreciated. (scroll to last post)

https://ls1tech.com/forums/lsx-parts...4l80e-97k.html

I'd really like to give him a good answer and get this trans out of my hair (possibly).

Since he has an 04 pcm from a 6L/4l80e truck I don't know what to tell him, my limited research of 4l60e to 4l80e swaps is pretty weak lol Thanks for any help guys.
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