I want to limit the drop-down to Years only 1975, 1976, and 1977.

Looking at the custom date picker, but I want to limit the drop-down to Years only 1975, 1976, 1977 etc, how can I do this? Or is there a better way to do this?

Are you working on this form? (https://www.jotform.com/81217924351151)

You can try the Date Picker widget instead of the Basic Date field. Here's the link: https://widgets.jotform.com/widget/date_picker

You can check the difference between the two in the screencast below:

If you want to limit it, check the Basic Date field properties. You can disable the Date Ranges or Custom Dates in the Limits tab.

I hope this helps.