Aftermarket 70-74 E-Body and 71-74 B-Body Bendix Disc Brake Power Booster with Mounting Hardware. Does not include Toe Plate or Linkage which is sold separately as a Kit, our Part # BH0447. Not for Hemi Equipped Vehicles which have a Different Bolt Pattern on the Back Side and uses an Offset Bracket that shifts the Booster Up and over to the Left side for Engine Clearance. NOTE 1: This Booster is a Direct Bolt on for the 70 E-Bodys, however, for use on the 71-74 B & E-Bodys, you must use the Toe Plate & Linkage Kit, Part # BH0447. NOTE 2: These were not used by the Factory on these Vehicles, with exception to the Bendix Booster used on the 70-71 Hemi cars, but do work well and look good under the Hood.