It appears from the picture that the pumps are different, look at the bolt that retains the reservoir, it's in a different location.

So it there a general rule? TRW 68 and back? 69-? B-bodies except Hemis Federal? C-bodies saginaw?

I pretty sure the one on my AAR is a Federal as did a 70 Dart I pulled a spare off of. Best I can tell a 68 SB Coronet I have has a TRW on it.

The above picture show the same mounts for the bracket but the ones I have that I think are TRWs have a different mount. The first picture I attached is I believe a TRW, the second is what I believe is a Federal.

Thanks for the input folks.