Rear Left Brake Caliper - 1987 Mustang

When sourcing Ford Fox Body brake components, the rear left caliper (E7ZZ-2V591-A) from a 1987 Mustang 5.0L represents the definitive 1986-1993 single-piston sliding design. Unlike the rare 1982-1985 GT units with their problematic single-guide-pin setup, these feature dual slide pins with rubber bushings that resist salt corrosion. Junkyard inspectors should verify casting codes E7 or F1 on the caliper body and test the parking brake lever for freedom of movement—common failures include seized parking brake ratchets and cracked dust boots on the piston. The service replacement F1ZZ-2V591-AA offers direct interchangeability across all 1986-1993 V8 Mustangs except the 1993 Cobra. Installation requires positioning the left caliper with the bleeder screw upward; always replace copper sealing washers at the banjo bolt and lubricate slide pins with silicone grease only, never petroleum-based products that degrade the boots.