Gravity Forms Chained Selects Addon GPL
Cascading drop-down select fields made easy! Import a CSV to create Year/Make/Model style selections or use available hooks/filters to data drive the drop-down choices dynamically.
Easily add a Chained Selects cascading field to your form with the Chained Selects field. This field will then allow you to create various select fields that will dynamically change based on the previous selection, providing an impressive user experience for your audience.