If you're having trouble with accurate shifts, you may want to check out your shifter bushings and the socket the lower tip bushing goes thats in the inside of the shifter housing.

The later model W58 and R154 transmissions can have a cushioned sleeve inside the shifter arm itself that is know to wear out with time causing bad shifting.

Our new problem solver bushing is oversized to make up the gap when the cushion sleeve is removed. Most of the time, the worn out cushion in the shifter arm can be removed without removing the arm from the transmission.

Shifter housing and shifter not included.