I looked at my rear calipers and it appeared there was only 1 bolt.
Is there any tricks to removing them and for pad replacement?

Thanks

It rotates on the other pin.

I looked at my rear calipers and it appeared there was only 1 bolt.
Is there any tricks to removing them and for pad replacement?

Thanks

You remove the bottom bolt and the caliper rotates up on the top pivot post. You will also need to unbolt the e-brake line bracket right there on the control arm to make room for the caliper to move up freely.