Gathering parts for a 4l80E swap into a 2000 4x4 Blazer. Looks like in order to use the RPM adapter to 4L80E I need the correct transfer case adapter. Part # looks to be 15661062 and only came in Sy/Ty and 91-94 Bravadas. (700r4, 4l60 to BW4472, 1372)
here's a pic from another thread...(its the...