Mcgaughys caliper and pads

[68wannabe]

Hey all, this is the first time I've ever messed with brake calipers and pads and am not sure if I installed them right. I bought a McGaughy's disc brake conversion kit for my '68, which came with no instructions. The brake pads seem like they're just sitting in there freely and can move around quite a bit. I already put one spindle, disc, caliper and pads together, but I installed just the caliper, pads, and spindle so that you can get a better look at what I'm seeing. Thanks for any help.