you just have to pry the lenses away from the housings very carefully. the lenses are held onto the housings by a black caulk called buytle caulk. i don't know where to find it, but any plastic adhesive that seals out moisture would work to re apply the lenses. be sure to remove all the old butyle caulk. grab on the outside edges, the ones closest to the license plate and around the side of the car. no re-configuring required, you might want to change the turn signal bulbs to amber bulbs though. i've been pulled over twice because i didn't. i have cobra tail lights now though. anyways, on the GT cheese graters, the area over the turn signal bulb is red so ford used a clear bulb on the GT's. on the LX lenses, the part over the turn signal bulbs are clear, so if you use the same bulbs you'll have "white" or "clear" turn signals which apparently is illegal.