1932 Buick Speedometer Cable issues

[32BuickVicky]

 

Hey guys,

 

I'm having a speedo issue that I believe is cable related.  The speedometer does register and move but it's not accurate. It seems to bounce around a little bit and does increase as the car speed increases but never matches the true speed.  Also, there is a clicking in the cable with acceleration that gets a little less noisy as you speed up.  I believe the cable/line is likely bent inside the sheath.  I put some grease down in the cable and it did make it quiet again but the speed still doesn't register.

 

Wondering if anyone has had this issue and if you recommend full replacement of the cable or if anyone has attempted to restraighten one. Would love to hear thoughts.