Source for wood shift knob bushing?

gt3racerich · 11-04-2017, 11:46 AM

Does anyone know where I can purchase the insert or bushing that is required to install a wood shift knob on a stock 1973 911 shifter? I was given a nice wood knob as a gift but it is just a bare knob without any way to install it.
Thanks.

larrym · larrym's Garage

shift knob crush sleeve alternatives

ian c2 · 11-04-2017, 08:09 PM

There was a thread I read on here just this week that talked about this .
If I recall , it was a European guy that made his own balsa gear-knob and ended up using epoxy to bong an insert in .

Flojo · Flojo's Garage

What diameter is there in the knob for a bushing?

The 915-shiftrod is 15mm, the G50 is 13mm with an M8 thread inside.

Maye show pictures and measurements of your knob for further help

chris_seven · 11-05-2017, 04:00 AM

We have been making wooden gearknobs for a few years now.

We make an Aluminium sleeve with straight knurls which presses into the wood.

They have the same ID as the original gear lever and we use a short tolerance ring to hold them onto the shaft.

gt3racerich · 11-07-2017, 01:31 PM

Thanks for the replies.
The opening in my knob is 14.44mm. I come up with a measurement for my shifter of 15.23mm.
Chris, what size is the opening in your knobs to accept the sleeve that you make?
I assume I would have to drill out the opening although I don't know how I would do that without damaging the wood. (that is if you would sell me one of your sleeves)
As Flojo says, the shifter for a G50 is 13mm. Maybe my knob is for that and I should try to sell it and get the correct knob?
Any other thoughts are appreciated.

universeman · universeman's Garage

Quote:

Originally Posted by gt3racerich

Thanks for the replies.
The opening in my knob is 14.44mm. I come up with a measurement for my shifter of 15.23mm.
Chris, what size is the opening in your knobs to accept the sleeve that you make?
I assume I would have to drill out the opening although I don't know how I would do that without damaging the wood. (that is if you would sell me one of your sleeves)
As Flojo says, the shifter for a G50 is 13mm. Maybe my knob is for that and I should try to sell it and get the correct knob?
Any other thoughts are appreciated.

Why don’t you PM Chris and see if he’d make a deal with you on trading the knob you have, for one for your car

Flojo · Flojo's Garage

Quote:

Originally Posted by gt3racerich

Thanks for the replies.
The opening in my knob is 14.44mm. I come up with a measurement for my shifter of 15.23mm.

well, widening it is the easiest part. no?
widen the bore to16mm net and it should fit with crush sleeve like a charme.

gt3racerich · 11-09-2017, 04:21 AM

Quote:

Originally Posted by Flojo

well, widening it is the easiest part. no?
widen the bore to16mm net and it should fit with crush sleeve like a charme.

My concern is trying to drill into a round object. I am afraid that I would have to put so much clamping force on it to hold it still while drilling that I could damage the knob.
I still would attempt it if I could source the correct bushing or collar.
I would certainly buy one from Chris if he would sell just a collar.

gt3racerich · 11-09-2017, 04:22 AM

Quote:

Originally Posted by chris_seven

We have been making wooden gearknobs for a few years now.

We make an Aluminium sleeve with straight knurls which presses into the wood.

They have the same ID as the original gear lever and we use a short tolerance ring to hold them onto the shaft.

Chris, any chance I can purchase a collar from you?