Wilsons Sandbox

I replaced my rear brake pads last night, my question is: Should the inside pad move freely? I had to force it into the caliper by pressing it down into the metal spring and now it seems like the two pins don't slide freely in and out because of the friction caused by the pad. I have no reference on how it's supposed to fit because the pads were missing when I bought the bike. [Non-text portions of this message have been removed]