MP,
I will be installing the duramax in a non gm vehicle. I am thinking of LLY and ZF six speed and getting local engineering firm to make an adaptor for me to bolt up to Ladrover LT230 (Constant 4WD). Will probally use GM IPC as land rover dash is rubbish. Will get service manuals and wiring diagrams first to give me an idea what will be required. Had a quick look at those web links you posted and will contact one of them when i am ready. Might be easier to get a whole truck that has been rear ended, then can use all radiator,intercooler etc??

Thanks Garry.