hello im in the middle of swaping a 5.3 in to my 1988 step side chevy and have a question when i pick the motor up i relized that the junk yard cut some of the wiring to remove it out of the old truck basically the transmisstion wiing was cut so i went to the pull a part and cut the back have of the transmission wiring it came from a 2004 astro van with a 4l60e the only problem i saw that from the 5.3 2001 wiring harness has a diffrent trans range sensorfrom the 2004 wiring harness would there be a problem if i just wired up the 2004 trans range sensor in to the 2001 5.3 wiring harness

 

Here is a link that I made to convert 4L80e wiring to 4L60e. It will show you where all the wires go and what they do.

https://docs.google.com/spreadsheet/...hl=en_US#gid=0