rotorwrench
Well-known member
The 2-speed was an all new transmission in 1959 and it has an aluminum case. The early FOM was always a 3-speed forward transmission but it evolved into two more types in 1955 for the Thunderbird & Mercury with Medium case and the Lincoln with the large case or Turbo drive set up. In 1958 the big change was for a new Cruise-O-Matic twin range automatic but it was still throttle valve operated. When the Comet was developed it was to be an Edsel compact but the death of the Edsel in 1960 changed that. The Falcon, Comet, and small Fairlane/Meteor cars needed a new light weight light duty transmission as well as the need for a replacement light duty in the remaining Y-block and 223/262 6-cylinder applications. Some parts interchange between the small and medium case FOM transmissions but everything is different in the 2-speed FOM.
The vacuum modulation finally came along in 1961. The 2-speed popularity was dropping off and larger displacement small blocks were on the drawing board so the C4 was developed for 1964. Ford always changed things on the fly so there are sub models of these transmissions that came out to keep up with the changes.
The vacuum modulation finally came along in 1961. The 2-speed popularity was dropping off and larger displacement small blocks were on the drawing board so the C4 was developed for 1964. Ford always changed things on the fly so there are sub models of these transmissions that came out to keep up with the changes.
