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T56 to 4l60e wiring harness?

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Old Jun 29, 2018 | 08:08 PM
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Default T56 to 4l60e wiring harness?

I am doing the swap and I was wondering what is involved with the wiring. Obviously I need a new wiring harness. Does anybody have a part number? Do I need a new PCM or can I have mine "reflashed"? Thanks for the help!
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Old Jun 29, 2018 | 08:18 PM
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The PCM can be reflashed. I don't know if the harness is sold new. They sell for stupid money most places. I have a spare and I'm holding onto it.
In all reality you could go to a pull and pay junkyard and get the trans harness out of any f body, even a V6 as long as it uses the same color PCM as what you have. That would cost me around $15.
You'll need to get a diagram and pin the PCM plug.

I swapped my '02 from A4 to M6 a long time ago and just swapped it back a year or so ago. It's not very difficult.
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Old Jun 29, 2018 | 08:42 PM
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Originally Posted by Jays_SSZ28
The PCM can be reflashed. I don't know if the harness is sold new. They sell for stupid money most places. I have a spare and I'm holding onto it.
In all reality you could go to a pull and pay junkyard and get the trans harness out of any f body, even a V6 as long as it uses the same color PCM as what you have. That would cost me around $15.
You'll need to get a diagram and pin the PCM plug.

I swapped my '02 from A4 to M6 a long time ago and just swapped it back a year or so ago. It's not very difficult.
Thanks for the advice. I honestly didn’t even think about a V6 working but now it makes sense. Thanks again!
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Old Jun 30, 2018 | 11:24 AM
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Ok I'm getting PM's from someone who can't post here.

Originally Posted by Jays_SSZ28
Originally Posted by JOHNNY59
Originally Posted by Jays_SSZ28
Originally Posted by JOHNNY59
A V6 engine harness won't work on a LS1 V8 as they are completely different. If you need a LS1 engine harness I have a complete one for a 99-02 A4 f-body.
I meant take the transmission harness out of it. I've done it. Think ..... the transmission is in the same location, the pcm is in the same location, that section is the same between LS1's and v6's.

And like I said you can even take the transmission wiring out of a truck or van, they will be longer but will work.
I understand that, but the harnesses aren't interchangeable without a lot of work. Same with the truck harness, you can make it work, but needs major rewiring.
Dude Why the **** are you bothering me with this ******* bullshit????

I never said it was a direct swap to use a truck or van transmission section of the harness. So it's longer. It will still work. This dude needs to leave me the hell alone.
​​​​​​​
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Old Jun 30, 2018 | 12:25 PM
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Originally Posted by Jays_SSZ28
Ok I'm getting PM's from someone who can't post here.




I never said it was a direct swap to use a truck or van transmission section of the harness. So it's longer. It will still work. This dude needs to leave me the hell alone.
Jay thanks for the advice. I’m heading to the pull and pay on Monday!
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