Way over my head

I live too far away to help in person. But would be glad to share advice where I can.

You definitely are on the right web site and you need to get good at searching it. The search feature can be useful, but I've found that I have better luck with Google site specific search.

In the google search window, type something like:

speedometer cable leak 1965 site:forabodiesonly.com

That will limit Google to only this site.

Also, somewhere on this site are links to Factory Services Manuals for each year. They are free. Find the one for your car and use it. They are excellent and they are text searchable. Sometimes they will tell you to use a special tool, but there are other ways and that's where the added knowledge from this site comes in.