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i want to clear something up in my mind roundhouse, i only know of the 4l80e being bolted to a 205. the adapter off a th400/205 can be put on a 4l80e with a little modification. what i want to know is it the same story for a th400/208, can you take the adapter and t case from that and make it work for a 4l80e. i would like to make a sticky that will say what you need to do for each setup