1949-55 trucks models 5-7 with OD 4.55 or 4.89 RA ratio Models 10-12 with 4.857 or 5.57 RA ratio

4 teeth Many M-series trucks with 4-speed see notes in parts manual Other applications

Type C 6 teeth automatics only 1950-56 Champions with 3.54 4.1 RA ratio 1950-55 Commander with 3.54 or 4.09 RA ratio 1955 Presidents with 3.54 RA ratio after trans serial 7001 Other applications

Numerous 1955-58 applications

1951-54 Commander with 3-speed less OD with 4.09-4.55 RA ratio 1955 V-8 with 3.54-4.56 RA ratio 1956-57 V-8

5 teeth All 1947-50 cars with OD Many 1955-58 cars with OD Other applications

1947-50 Commander with 3-speed less OD 3.54 4.09 or 4.55 RA ratio 2R-3R Trucks models 5-7 less OD with 4.09 or 4.27 RA ratio 2E Trucks models 5 10 with 3-speed less OD

On transmission shaft 1947-54 Champions except wagon with 3-speed less OD RA ratio of 4.10 or 4.56

5 teeth All 1941-46 Champion with 4.1 RA ratio

All 1938-39 cars less OD except Champion

16 Teeth 1963-64 cars with 3.07 RA ratio

17 Teeth 1963-64 4-speed cars with 4.55 RA ratio 6.70 tires