I am not sure how these spacers are fitted. Anyone fitted these before? I imagine the nylon spacer slots into the hole on the leaf switch and this might be melted to fit to the leaf switch. I tried to remove a spacer from another switch assy but they are fixed tight. Surely someone here has had to replace these before?

I did buy these from PBR they are measured imperial ie 1/4 in 5/8 in etc. The way i fit them is place nylon lifter on a hard surface attach blade/leaf then peen over with small hammer the nylon tip. A few light taps will do the trick. sounds a bit rough but works a treat