Allen Wrench Size for 2001 GC Brake Calipers

Greetings! Can anyone tell me the correct Allen Wrench size to remove brake calipers on a 2001 Grand Caravan? I have almost every concievable size except 9/32 or 7 mm, and it's clearly one of the two. I am also assuming the wrench size needed is the same for the front and back brakes.