Went to pick a part today, they already had wire harness pulled and put in a bag, labeled, ready to go. 2000 5.3 4l60e 4X4 $150.00. ECM with 0411 service# $75.00
Was really wanting to remove the harness myself so I could label and get a mental, but what can you do. Was able to get some goodies for my other build so that
made me feel good. So I got home, pulled the harness out of the bag, first thing I looked for was the data connector, nope not happening. Oh well I'm sure there will
be other stuff I need, they did not have any electric fans, so my list continues. So now off to lt1swap.com for some serious reading