mr cribb - Are you looking to tune, or just get a 0411 pcm loaded with the Express van OS? The OS can be flashed with PCM Hammer (freeware, find it at pcmhacking dot net), using an OBD II cable (I...

Hi everyone! My name is Mike, and I decided to join this group because I am in the process of swapping in a P59 into a '97 Suburban. Lots of websites with good information on how to do that, but...