I removed my shifter knob to install new sleeving on the shaft, and
found a dab of sylicone seal.     I did not replace this.  Now
I noticed that the knob itself makes a  small high pitch noise.
If  you rest a finger on the knob, the noise stops. I guess that
sylicone was there for a reason.  My be this is the same with yours.
                                                       Eric

Matt Sutton wrote:

>Hi Folks,
>    Just back from a 600 mile round trip to Wells ME (really beautiful), and
>have a new concern.
>    In 4th gear, normal cruising Rpms(3600-4000), there's a rattle sound
>that comes from the shift knob. It goes away with some gentle pressure or
>tapping, but then returns. Seems to change volume but not frequency with
>speed changes.
>    I unscrewed the knob to tighten anything loose, but there wasn't
>anything in there. Is this a sound transmitted through the gear linkage, all
>the way from the tranny? Searched the archives, all questions no answers.
>
>maybe meaningful clues:
>-Recently switched to Redline MT-90, probably the first fluid swap in the
>life of the tranny.
>-approx. 170k on the engine and tranny
>-Shifts easily (by my standards), stays in gear.
>-new clutch slave cylinder (two months ago)
>
>-Matt Sutton
>88 GL 4-speed
>Brooklyn NY
>
>
>
>