it was a PITA man. i used my heat gun and just went around. once you get it started it gets easier. but it's something i never want to do again. once you melt the gasket sealer it gets all over your hands and you gotta watch and not get it on the headlights. then before you put it back together you have to heat it again and dig it out of the cracks so you can use the new sealer.Was it easy to crack open an aftermarket headlight? Did you bake it in the oven or did you just use that heat gun in the pic?