Originally Posted by seldencove
I went to Napa today and picked them up, all set to go....Andy, I think I have 10" brakes, not quite sure yet until I pull them apart.
No need to take anything apart.
The brakes are mounted to a flange that's welded to the spindle.
If that flange is square, then you have 10 inch brakes.
If the flange is round, you have 12 inch brakes.
Your trailer originally had 12 inch brakes, which of course has much more stopping power than 10 inch brakes, if yours are so equipped.