Rear glass in, transmission cooler lines for a 727 Duster formed and installed with a left over slant 6 clip, the 1157s were melting the front marker lenses (the old factory lenses were melting too). Replaced them with 1157 mini bulbs for motorcycles. Just as bright but the heat is not near the plastic. The 66 Valiant has this problem with the taillights so I got 2 for that as well.