In a saucepan, combine vinegar, water, salt, and sugar. Bring to a boil to dissolve the salt and sugar.
In sterilized jars, pack the okra pods tightly.
Add a clove of garlic, mustard seeds, dill seeds, and red pepper flakes to each jar.
Pour the hot vinegar mixture into the jars, leaving about 1/2 inch of headspace at the top.
Seal the jars with sterilized lids and rings.
Process the jars in a boiling water bath for 10 minutes.
Allow the jars to cool and store them in a cool, dark place.
Let the okra pickle for at least 2 weeks before opening for optimal flavor.