Rear Left Brake Flex Hose - 1987 Mustang

The rear left brake flex hose on your 1987 Ford Mustang GT (E7TE 5.0L) serves as the critical flexible connection between the axle hardline and the rear disc brake caliper. Ford originally specified E7ZZ-2A442-A for this application, later superseded to F1ZZ-2A442-A in service catalogs. This hose is interchangeable across all 1987-1993 Fox Body Mustangs equipped with rear disc brakes, encompassing GT models and LX 5.0s featuring the Performance Rear Axle option. When junkyard hunting, prioritize 1990-1993 donor vehicles for fresher rubber compounds, but meticulously inspect for weather-cracked jackets, fluid seepage at the crimps, or bulging under residual pressure. Installation demands new copper crush washers at the banjo fitting and careful routing through the retaining bracket to prevent tire or suspension contact; note the stamped 'L' indicator confirming left-side orientation. Never attempt to substitute drum brake hoses (E5ZZ-2282-A series), as these feature incompatible length and end fittings. Always replace these hoses in axle pairs to ensure balanced hydraulic pressure and prevent brake pull.