The pads I used were for the WRX which I'm assuming is the same as the Legacy rear pads but a different number. My install specifically states:
1 - 26696FC002 - WRX rear brake pad kit
I thought all rear pads were similar until I tried to put my OEM Forester Pads in the bracket and found out differently. It seems there was a general change in the tab shape after 2002 across the line I think.
Peaty
Just as an aside, people keep referring to the rear rotor upgrade as the
H6 upgrade. Not sure where this started but
all Legacys both the H4 and H6 have the same size rear rotors for 00+. The rotors are not different between the different motors. It's just a Legacy rear rotor upgrade