Power Brake Booster fits 1980-1983 Ford Bronco F-100 F-150 F-250 RWD 4WD

1980-1983 Ford Bronco 4WD; without Master Cylinder. 1980 Ford F-250 RWD & 4WD; without Master Cylinder. 1980-1983 Ford F-150 RWD & 4WD; without Master Cylinder. 1981-1983 Ford F-250 RWD & 4WD; Under 8500 (lb) Gross Vehicle Weight (GVW), without Master Cylinder.