Yes, they are the same, 8. 25/8.75/9.25 and Dana 60 all use the same pattern to attach them, all backing plates have 5 holes punched, the 8.25 uses 4 of the 5, 8.75 and Dana use 5 of the holes and I can't remember without looking at the one beside my shop how many of the 5 holes the 9.25 uses.
Nick