I've looked at the youtube site for the fellow who does Duramax conversions. Duraburb I think is what he calls it. Anyway. It seems they will only work on 2002+ Suburbans. Anyone know off hand what is different with 2000 and 2001 Suburbans? I'm guessing it is maybe computer/ECU changes is why they don't want to work on the older Burb, even though it is the same generation.