Depends, but usually the answer is yes.
What year is your bronco? Does it have factory vacuum wipers, factory electric wipers, or aftermarket electric wipers?
The factory electric wipers the answer is usually to pull the arm and rotate it on the splines. Aftermarket electric can do the same thing, but are also usually adjustable for sweep and stop. Vacuum wipers probably don’t have any mechanical adjustments, but I really don’t know much about them. It should still have a splined shaft through the windshield frame that you can rotate your arms on.
Let us know what you have.