Ls with 4wd wiring

[kipps]

I assume you're basing this on lt1swap.com's e38 diagram.

He mentions that some models used those pins. If you look up the two RPO codes he mentions, they both refer to a vehicle with a manually shifted transfer case.

I have an alldata subscription for a 2010 Tahoe. It says that pins 2-8 are not used. Which stands to reason, since the tahoe would never have had a manual t-case.

I question if you need those pins, since they probably only re-calibrate the speedo and shift points while in low range, and who needs that?

If you have to use those pins, I'd find a friendly mechanics shop who has an unlimited alldata subscription. Tell alldata that you want to look at a very bare bones silverado 1500. And look for the transfer case wiring diagram.