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Old 07-25-2012, 09:45 AM
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4L60E interchangeability 01 - 05

I am dropping a 2001 5.3L Votec from a Chevy Silverado 1500 into my project. Unfortunately the tranny from this motor is gone. The yard does have a 2005 4L60e from a Silverado that they say will work. I know that the PNP switch is different but I have that figured out.

However I have noticed that the internal wiring harness has a year break for the 4l60e, 99-02 and a different internal harness for 03-up.

I will be using the PCM and wiring from the 2001. But before I do all the work of rebuilding and dropping this tranny in I want to make sure it will work.

Any help is much appreciated. Thank you .
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