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JJAB · 11-21-2011, 01:49 PM

Guys, can you clear something up for me. I have successfully completed two 99-02 LS1 conversions where I purchased the entire setup(motor, tranny, harness and pcm). Here is my question, I was given a low mileage 4L80E and I am about to purchase a 2001 6.0. If I purchase a harness that was on a 4.8 or 5.3 with a 4l60E, how difficult will it be to make the harness capadible wth the 4L80e.

11-21-2011, 01:49 PM	#1
JJAB Registered User Join Date: Sep 2010 Location: Waco,Texas Posts: 143	4l60E/4L80E Transmission Guys, can you clear something up for me. I have successfully completed two 99-02 LS1 conversions where I purchased the entire setup(motor, tranny, harness and pcm). Here is my question, I was given a low mileage 4L80E and I am about to purchase a 2001 6.0. If I purchase a harness that was on a 4.8 or 5.3 with a 4l60E, how difficult will it be to make the harness capadible wth the 4L80e.