
Originally Posted by
JDNSW
Two reasons - acts as a vibration damper for the gear lever, and reduces labour in assembly.
I replaced the rubber on mine that had disintegrated years ago with an inch of heater hose. Then last year did pretty much what you have, except I turned the nut down to a loose fit, and then fitted a thin rubber sleeve on it and used bearing lock to make sure it stayed in the knob. Also provided a locknut to allow it to be locked with the gearchange pattern correctly oriented.
John
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