TCI does not indicate that it was made for a specific transmission, only that it was a buick/olds/pontiac bolt pattern. I purchased it for a 200R4, but have decided to go with a TH400 and the CSI sheild.
John
That will fit any transmission that has only the Buick, Olds, Pontiac bolt pattern. Most, but not all, of the 2004R cases have the BOP/Chevy combo pattern which would use TCI flexplate shield 940075.