two vss?

[bark]

Hi I'm modding my own harness, well trying lol ( 05 6.0 4l80e ) I am following most the instructions on lt1swap, not sure on the difference, but will figure it as I go. I was wondering whey there is two vehicle speed sensors. From what I read he gets rid of one, I assume one is for the computer shift points, is the other for a speedo? I am planning on running a 91 burb electric dash so do I need the extra wire for that

Has any one found any lists of what wires are needed in my swap, most the ones I find are for a 5.3 4l60e are they pretty much the same

thanks