65 skylark starter problems

I have a 65 skylark with a 75 Lasabre 455 in it. Recently it started making a ticking noise %50 of the time when I went to start it up. My first reaction was to change the starter, which I did.

I still get the ticking noise, so I checked the battery to make sure it was good, which it is. The ticking still happens.

I then took a pair of jumpers and connected them directly to the starter and the frame and hooked them up to my wife's car that was running to see if it would jump, which it didnt.

I shave my head or I would pull my hair out.

Anyone our there have any ideas for me to try? I admit my mechanical ability is mediocre at best, so treat me like I'm 5.

Thanks fellas.
Dmack