Hey. I'll cut to the chase. I'm going to LS swap my 1964 Cadillac and I'm about to eat so many shit-sandwiches to do it. I've gotten a donor truck and sold parts. So far, the engine and harness are completely free! 2005 gmc sierra 2500hd. 6.0L LQ4 220k. I've used LS Droid to read the pcm. O.S.12592618 😬 Does this xdf exist yet? I'm pretty stupid, but i do learn. Glad to be aboard!