Couple questions just to be sure we are on the same page. You are looking to lubricate the cable as it goes into the speedometer unit?
If that is the case, then I would suggest using a graphite lubricant that you can get at any parts store. I pictured a common one below.
There are many products out there that are for speedometer lubrication, but I use graphite on the 1956 Mark II that my father-in-law owns.
Once you remove the cluster, you unscrew the cable and lubricate the end of the tip. Make sure you clean it first. Then you do not need much of this. Maybe the size of a pea on the cable.
His speedometer clicks and this helps eliminate it.
Let me know if you have questions about this. Thanks
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Friday, January 21st, 2022 AT 5:27 PM