This is a new 8" Black Power Brake Booster for 1970-74 Mopar Dodge B E Bodies. Mopar Bendix Style 8" Dual Power Booster w/ Classic Trapezoid Nose. Note:Mopar Bendix style trapezoid nose booster fits 1971-1974 B bodies & 1970-1974 E Bodies thatdon't have 426 HEMI engine; and is for use with 4 stud master cylinder.