WTB: 03 and Up V8 Engine/4L60E Trans Harness but must be DBC not DBW

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04-17-2018, 12:35 PM

prican_2000

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WTB: 03 and Up V8 Engine/4L60E Trans Harness but must be DBC not DBW

I am looking for an 03 and up (06-07) Engine/Trans Harness from a V8 Express Van with 4L60E trans and Drive by Cable TB.

Simply because I have a 2005 V6 2WD Silverado W/T (had the DBC TB) so in order to make it easy (or so I thought) I swapped out the V6 and installed a 99 LM7 5.3 with DBC TB. BUT the wiring harness from the 99 motor will not work with the 2005 truck. Apparently GM has repinned the harnesses and some plugs from the 99 DO NOT plug into the 05. So I was told to get a Wiring harness from the 03 and up Van's that had the V8 and the 4L60E Trans but had DBC. Already have a PCM that is compatible with DBC and DBW just need the engine and Trans main harness.

May be a long shot but hopefully someone out there can help.

Thanks for your time

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05-02-2018, 02:10 PM

ToBiN!

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good luck man. from my understanding is all went DBW in 2003. Didn't know there was a DBC setup for 2003/4 express vans.
Have you thought about just converting to DBW and getting a pedal from the yard? Otherwise, I ordered my harness from PSI (https://www.psiconversion.com/) for my swap and they may have something there for you.