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911pcars 911pcars is offline
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Join Date: Jul 2000
Location: So. Calif.
Posts: 19,910
Quote:
Originally Posted by D999SS View Post
I'm working on designing a new shift knob for my SC and wonder is anyone would knows the thread pattern for the 915 shift leaver.
Obviously, you have yet to remove (or try to remove) the factory shift knob.

In most cases, the fit of the knob and crush ring pretty much results in destroying or seriously marring the knob upon removal anyway.

Measure the OD of the lever right below the knob to get a good idea of the hole size of the knob you're going to create. For best knob longevity, I suggest using an alternate method of attaching it to the lever (e.g. Momo uses set screws hidden under a thin threaded collar).


If a threaded knob is desired, install a stud in the hollow lever tube with epoxy, cut internal threads or attach with a top side set screw ala G50 style.

Sherwood
Old 09-30-2014, 12:55 AM
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