Ah yes, the aftermarket can be a real pain in the a**... especially with lights such as these. i went through many headlights with my blazer, and it was very difficult getting them in... actually broke one of my retaining rings from it not fitting right. It could be possible that they could be for a motor cycle?? When it comes to aftermarket lighting, i would have to say hella would probrolly be one of the best quality lights. And if your gonna upgrade your lights you should also upgrade your harness, unless you dont mind your trucks wiring getting crispy lol. You probrolly have to modify your headlight bowls if you really want to use those headlights
