The '55 is totally different than the '54. The '55 has a suspended brake pedal with the MC on the firewall. The '54 pedal goes through the floor to the MC under the floor on the frame rail. The '55 is a one year only setup, with a combination master cylinder and booster that works on a displacement process. A complete '56 system could be retrofit to a '55, but there's nothing on either compatable with a '54. '54 was truly the end of an era. --Roger van Hoy, '55 DeSoto, '58 DeSoto, '42 DeSoto, '66 Plymouth, '81 Imperial, Washougal, WA ----- Original Message ----- From: "roger crabtree" <rcrabshish@xxxxxxxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Wednesday, March 19, 2003 6:19 PM Subject: Re: IML: bleeding brakes * | I was just wondering how much difference there is in | the 54 system and the 55 system. Your front breaks | look just like mine with the double slave cylinders. | Are the master cylinders the same between the two | years? The part house says 55 was the only year for | that master cylinder but I dont know. RC.