This dual contact light bulb socket has a 10" pigtail. It is compatible with #1157 bulbs and has a 1.25” focal length that fits a 1” opening.
Fits Cadillac:
Brougham 1987-1992
Calais 1974-1976
DeVille 1974-1993
ElDorado 1974-1999
Fleetwood 1974-1991