Different offsets between the flexplates. You can get a new one at your local parts store. A C6 and E4OD uses the same flexplate and the AOD is different.What if it is not? Any good souces for flex plates? I haven't seen the engine yet, so don't know if it on a c6 or AOD.
I'm presumign this would be a straight forward swap. Anything else I would need to look at? I'm thinking mounting blocks... Thanks!