lltfs:
after you surrender your expired or still valid US driver license, pay $75 service charge, and pass the eyes test on- site in vehicle center/test center, you will be given a 3-month temporary driver license, later on a G class driver license will be sent to your address to replace the temporay one.
Except filling out some forms regarding when and where you got your US driver license, etc, I don't remember experience proof required.
the whole process is quiet simple.