This information might only be correct for manual transmission trucks?
manual chokes in:
1963, 1964, 1965 - 153 (4cyl), 230 6cyl, 292 6 cyl
manual chokes in:
1966, 1967 - 230, 250, 292 all 6 cyl
In 1968:
- "Turbo Thrift" 230 and 250 had automatic choke
- "High Torque" 230, 250, 292 had manual choke