10 x 2.5 breaks for 8 1/4 rear end.

John, The OP is needing these parts for an 8.25, not 8.75.

FORCED340 I offered a package to the OP, if he decides to go another way, I can hook you up with a pair of loaded plates and drums to match for $135 shipped. Can yet you know within 24 hours if they are going to be available.