How to remove a brake caliper?

-I have a 1984 B2000 truck. I have the tires off but need to replace the brake calipers or possably use a repair kit. I need to know how to get the caliper off. Is there bolts that I am not seeing or is it clamped on?? lol thanks for any help:)here's a great way on how to replace you brake caliper.
Pretty easy job. Take a look at the video below. Only two bolts and they may require either a socket or allen wrench to remove.
Typically there are two bolts that hold the caliper on, usually accessible from the back of the caliper and will require either a 6 sided bolt or an Allen head bolt to remove.