Power Brake Booster; Booster; Vacuum Booster. Part Type: Power Brake Booster. Pwr Brake Booster. Remanufactured Vacuum Power Brake Booster. 1993 Cadillac 60 Special FWD; with Brake Code JM4; GM Brake Codes are on the "Service Parts Identification" Sticker; without Master Cylinder;.
