Before glueing them on, make sure you cut a notch out on the way in to the screw hole to match the one on the light unit on the side farthest from the boot. I found out the hard way that if you want to change a rear light bulb, it is in the way and I chewed it up with a Stanley knife. Worth doing before permanent fitting.

no problems with mine, the cuts where already there

not on mine. i got mine from joy tuning. your may be slightly different. was a right bitch when it came to taking the light unit off this afternoon. look out for it guys n gals.