74 / | HD | MACHINE ELEMENT OR MECHANISM |
469 | DF | CONTROL LEVER AND LINKAGE SYSTEMS {8} |
471 R | DF | .~ Multiple controlled elements {3} |
473.1 | DF | .~.~ Transmission control {11} |
473.21 | DF | .~.~.~ Restriction of shift, gear selection, or gear engagement {5} |
473.23 | .~.~.~.~ Separate actuator to disengage restrictor |