Transmission lock - shift rod guide nuts?

[Trevor Gates]

As the title says, does anyone happen to have a car already apart that has a transmission shift lock? I’m trying to find out the size of the off center nuts that are located where Jack’s right thumb is in the center picture.

[Doug McDonnell]

these? Sorry but I just have a picture of them. But the picture might help someone know the part for sure.

[Martin Benade]

I am pretty sure the thread is 6mm but they are more of a rectangular block than a nut, if I remember correctly. Possibly with either a groove or step on the face that clamps on the inside of the tunnel.

[Doug McDonnell]

Expensive little suckers but they are available: http://www.stoddard.com/69542421300.html

[Ron LaDow]

Doug's link shows them plated, which I've never seen on ones I've removed.
Regardless, the design is 'way more complicated than it needs to be and they are m6-1.0 threads, so if you have the tools available, it's not hard to sketch up and make an 'aftermarket' substitute which will work just fine.
But you'll have to value your time pretty cheaply to beat the advertised price. Or simply enjoy making them...

[Martin Benade]

I believe the channel down the middle is necessary to clear the edge of the hole in the top of the tunnel, which has a small angle bent in it for strength. I don't think it could be simplified much at all and still fit.

[Ron LaDow]

I believe the channel down the middle is necessary to clear the edge of the hole in the top of the tunnel, which has a small angle bent in it for strength. I don't think it could be simplified much at all and still fit.

1) Use a piece of 1/4" stock and super-glue some scrap to the sides as spacers.
2) Use a piece of 3/8" and spend a bit of time on the grinding wheel.
Was that so tough?

[Martin Benade]

Not so tough.

[Brad Ripley]

There is no nut. The bolt is 8 x 18 .

[Jon Bunin]

I’m trying to find out the size of the off center nuts that are located where Jack’s right thumb is in the center picture.

Porsche referred to this piece (#43 above) as Spannpratze für Schaltstangenführung, or Clamp for Gear Change Rod Guide.
The socket head cap screw (#44 above) was M6 x 18 DIN 912-8G.

Since the clamps are still available, new or used, Jack will do the right thing and obtain the correct parts ;-)

[Trevor Gates]

Thanks everyone. What I was looking for (if anyone had them readily available) was the size, maybe if someone had some in hand and could measure. Wouldn’t take me more than 15~20 minutes to cut the pieces and drill and tap the holes.

[Brad Ripley]

Jon, Thanks for the correction, the bolt is a M6, not the M8 as I posted above. In any event, I hoped the illustration helped.

[Jon Bunin]

What I was looking for (if anyone had them readily available) was the size, maybe if someone had some in hand and could measure. Wouldn’t take me more than 15~20 minutes to cut the pieces and drill and tap the holes.

Here you go, Trevor, they're 20 x 25 x 9 mm.
It's nice to know that these are still available from Stoddard.

[Vic Skirmants]

Note that they are not symmetrical. Only one way to install them correctly; look carefully and it will become obvious.

[Trevor Gates]

Jon - Thank you.

Vic - Yes I see that, thanks.