New set. Must be genuine. Aftermarket ones are made from cheese.
The only difference in the shoes (that you buy these days) is the location of the adjuster pin. The friction material location is the same. If you get them in wrong, then the adjusters don't work correctly.Thanks VERY much. I just put them back on the same way they came off (but who knows if that was correct). Both shoes looked identical to me, so I figured maybe leading/trailing wasn’t a thing anymore🤦🏼♂️