'67/'68 Shelby/Mustang Speedometer Bounce

[8T03S1425]

I just found out, through feedback on this forum, that my speedometer needle bounce, at low speeds, may be because of a kinked or dry drive cable, rather than an actual speedometer issue. That's a relief, because I may be able to fix it myself rather than having to send my speedometer out for a repair, that it may not need.

Recommendations were to add a graphite lube down the speedometer cable assembly, replace the drive cable if it's kinked, or replace the entire speedometer cable assembly.

It seems that if I choose to add a graphite lube it may be best to remove the cable to examine it for kinks and to better allow the lubricant to travel down through the cable sheathing. If the cable is kinked, can I use the cable from a reproduction cable assembly? I haven't seen an OEM speedometer cable assembly for a 4-spd, BB Mustang for sale in quite some time.

If working on the speedometer cable assembly doesn't fix the needle bounce, I guess I'll have to have the speedometer fixed.

Steve