Rattle in shifting mechanism Options

[andreic]

Hello,

I have a 1972 with the early (tail) shifter mechanism. The transmission shifts very well after I replaced all the bushings and adjusted the shifter.

However, in second, third, fourth, and fifth gears, as I accelerate through 1400 rpm there is a loud rattle that seems to come through the firewall. I believe it must be coming from the connection between the front shifter bar (the one that goes through the firewall) and the rear one. Both plastic balls at that connection were recently replaced in the shifting mechanism, but that part of the shifter still does not feel tight. The balls used were the black plastic ones supplied by Pelican.

Does anyone have any experience with these? Is there any other supplier of the plastic balls? If not, is there anything else I can do to eliminate the rattle there?

Thanks,
Andrei.

[Dr Evil]

Here is the Porsche parts diagram (available online for free).

Replacement of numbers 6, 9, (10), 11, 22, and 40 is recommended. The second ball on 40 is the one I was initially referring to. Firewall bushing not shown (weird).

The red arrow annotates the end that has a ball in it that wears down and causes sloppier shifting and rattle. The rod is not very tight in its habitat to begin with.