The only way I can think of to fix this without using these replacement parts would be to raise the level of the flats up by glueing/welding material on to them to raise them up to the height of the worn rubber bits but that would be one hell of a bodge!
The only way I can think of to fix this without using these replacement parts would be to raise the level of the flats up by glueing/welding material on to them to raise them up to the height of the worn rubber bits but that would be one hell of a bodge!