Yes I did search and yes I found a lot of people having issues. I pulled a 408 from a 04 ccsb and sold the complete engine, trans, pcm, and harness to a guy. I then bought a low mileage 04 5.3 completely stock with everything together to replace it. How do I get the new pcm to work in the truck and not have anti theft come on. I see the relink vats thing in hpt but do I just license the new pcm and relink it for 2 credits or what is the procedure?