You will need to drill out the existing rivets, install cork pad that
comes in kit, then the glide, then new rivets on each end. You will
need two kits, and no, you can't subsitute anything else for the
correct part.

If you have run the dryer with the drum gliding over worn pads, and if
it has ground down the surface of the drum so that it is rough, you
will need to replace the drum too, or you will end up grinding down new
pads very soon. If the drum is smooth, you don't need to replace it.