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SHIFT LEVER HANDLE INTERLOCK

3N71B

Fig. 1: View of the shift handle for the 3N71B transmission

Fig. 2: 3N71B shifter performance chart

The interlock should be adjusted when it does not perform as shown in the accompanying illustration, or, whenever the handle has been removed.

  1. Back off the locknut below the handle.
  2. Position the shifter in either N or D.
  3. Screw in the handle until no play is felt at the interlock button.
  4. Turn the handle one additional turn, if necessary, to position the button on the driver's side.
  5. Depress the button and shift to P. If the lever cannot be moved to the P position, screw in the handle an additional turn, repeating the shift move and additional turn, until P can be engaged smoothly. From this point, shift through the various positions, confirming that the shifter works as shown in the illustration. If the lever can be shifted to R from either P or N, or into 2 from D, without depressing the button, back out on the handle.
  6. When the adjustment is completed, check that the button protrudes 6.0mm (0.236 in.) from the handle in the N or P position. Recheck the shift pattern.
  7. Tighten the locknut to 15 ft. lbs.

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