Lower ball joint issue 1965 New Yorker

I'm having an issue with lower ball joints on my car. I ordered a set online that disappointingly were wrong. The problem is every place shows the same lower ball joint and says it covers 65-73 C-bodies. These lower ball joints are nothing like mine. My lower control arms look like a traditional mopar lower control arm but the ball joint unit is only about 4-5 inches long. The ones that were shipped to me and every other one I could find is about 12 inches long and has an extra eyelet for a bolt on the spindle side of the ball joint that my control arms don't have.

I noticed there is a lot of "65 only" stuff on this car. Are the lower ball joints one of these items?
Author: Darrell