1975 1976 1977 1978 Cadillac Battery Hold Down Retainer, GM Part number 1608537 Group 2.335 Fits the following Cars; 1975 ALL SERIES CARS, 1976 Calais, Deville, Fleetwood, Eldorado and Commercial Chassis. 1977 & 1978 Eldorado. This is USED PART.