Abstract: The pivot axis of a locking lever is used as the main gage or reference point relative to which the dimensions of components of the shift control mechanism are taken and, together with the geometry of the bellcrank, provide a transmission shift control mechanism that has no need for adjustment of the components involved upon assembly of the shift control mechanism with the ignition lock mechanism in the vehicle.

Abstract: The transmission shift control mechanism includes a shift lever with a pushbutton mechanism for releasing a detent mechanism so that the shift lever can be moved from the "Park" position to other operative positions. A shift lever locking mechanism prevents movement of the shift lever from the "Park" position when the ignition lock mechanism is actuated to the "Lock" position and also prevents actuation of the ignition lock mechanism to the "Lock" position when the shift lever is in other than the "Park" position. The locking mechanism includes a pivotal locking lever, such as a bellcrank, having one arm operably connected to the push-pull cable of the vehicle ignition lock mechanism and a locking arm movable to block release of the detent mechanism upon actuation of the ignition lock mechanism to the "Lock" position with the shift lever in "Park".