Camshaft position sensor 8.1

Does anyone know the location of a camshaft position sensor for a 2001 8.1 vortec 2500 hd crewcab. i cant find a manual on this truck. any info would help. thanks

I would say in the distributor body, but I don't think you have a distributor.

From the picture it may be in the timing cover http://www.rockauto.com/ref/Airtex/Detail.html?5S1394.jpg

//2000CAYukon