George wrote; Hello, The 1955 Crown Imperial had no brake booster, it did not need one as it had four wheel dick brakes. Mine stops very easy and quick. George McCollam I think George is right. The four-wheel disc brake system that was used on some Imperials in the early '50s had a self-energizing feature. The forward rotation of the wheels helped to apply braking effort. The same was not true when backing up, but that is at low speeds. All the information I have read about the system said that they were very easy to apply. It was a superior system from a design and operation standpoint, but expensive to produce and repair. The disc pad material went the entire 360 degrees of braking surface not just the typical 10 degrees or so seen on more modern designs. The system was not offered on the standard Imperial lines of '55, but could easily have been a case of use what you have left on the limos. Joseph W. Strickland 1021 Vaughan Lane Tioga, TX 76271-2937 ________________________________________ PeoplePC Online A better way to Internet http://www.peoplepc.com ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to iml.webmonster@xxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm