Finally got around to cleaning the passenger side ground on the frame behind the inner fender. While I had the wheel off I noticed this:

http://i136.photobucket.com/albums/q165/ryan_birch/1996%20Chevy%20Silverado%20K2500/BrokenLine.jpg

http://i136.photobucket.com/albums/q165/ryan_birch/1996%20Chevy%20Silverado%20K2500/Whatitconnectsto.jpg

Can't seem to find it in my manual. Can someone tell me what it is/does?

abs

that is the wire for the abs speed sensor that reads the front wheel speed

Ah! Thanks guys.

x3 on the ABS sensor wire. Mine is unplugged because my sensor is screwed up.