Speedometer cable for 1966 RHD mustang

[torrus]

The speedo needle bounces between 50 and 70 MPH when the car is doing about 60 MPH.  Have removed the existing cable ( both inner and outer) and there appears to be a slight kink in the inner cable next to speedo.  So I have purchased a new complete setup for a manual 66 manual mustang which is too short.  Car is auto but was told RHD need manual cable.  The cable I removed was between about 500 mm longer than new one.  Didn't need all the extra length.  So I assume one of the previous owners has used a cable from a different car or had one made.  Can someone advise me of other complete speedo cables from other cars that might suit or a cable manufacturer in the Illawarra /Southern Highland area.  RHD with a C4 auto.  Thanks

[muzzieat9]

Recently replaced my speedo cable for the same jumpy needle. Used manual cable and it was the right length for 65 auto RHD. As you'd expect it was a pain to fit at the dash end, but wasn't too tight as far as routing goes.

[torrus]

Did you bring the cable through the original speedo hole in the firewall?  Maybe I have been given the wrong cable because it is about 300 mm short.

[Clubman7]

Got a cable for a Falcon XY.
Car is converted to RHD.
Fits good.

[torrus]

Clubman 7.  With the XY cable did it fit through the original speedo hole in the firewall or did you drill one on the right hand side of the car?

[Tempest]

I used a Lokar cable that you cut to fit.
It's quite long out of the box, around 2m, so plenty long enough for a RHD

[Clubman7]

Speedo cable has a new hole drilled for it through fire wall.