Does anyone know what the thread pitch and size of the Fiero shifter? I'm working on a custom shift knob so i need to know both the size and thread pitch of the original shifter. This is an 88 Getrag if that makes any difference. Thanks.

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Activities Director N.I.F.E.

www.fierofocus.com

Can't remember, but you could take the shifter knob to a hardware store and go to the metric section and thread some bolts into it until you find a match...........That's my method ..........Paul

https://www.fiero.nl/forum/Forum2/HTML/044505.html

quote Originally posted by CC Rider: 16mm shaft x 1.5mm pitch. That would be a M16x1.5 if you're looking for the correct size die, etc

That is correct. It's M16x1.5.
Also, the late model Firebird/Camaro 6-speed manual shifters use the same threading, so a knob for them will also work. I'm using a factory Hurst shift knob out of a manual 6-speed Trans Am.

Thanks guys!

I never did figure it out .. when i put a cue ball on my 88 5-spd I actually machined the old handle down and pressed the female threads into a larger hole.

Just FYI, if you try to drill a hole in a pool ball, use a solid, not a stripe. They're a 2 step casting, and one color will shatter off the ball without warning. Also, if you are drilling one in a lathe, be ready to duck. If you feed too fast the ball will start to turn and bind on the bit. Flying bits of plastic.