so lets say I went with the 08 motor/trans. my guess would be I would need to modify motor mounts, the downpipe/O2 sensors, get the pcm to the donor car as well as the wiring harness, the gas pedal and drive by wire module, put a new fuel filter in the tank. Why would you have to replace the fuel lines? I would also guess that if the wheelbases are not the same that I would have to get custom axle shafts made to fit.....