1974 C10 Front brake Pads Rattle.. Help

[waters5]

I have a rattle coming from the front brake pads sounds like the pads are loose and slapping around in the Caliper. the noise goes away soon as little pressure is applied to the breaks. i have taken the pads out, replaced anti rattle spring on the inner pad. i think the outer pads are the ones making all the noise. cant find a way to fix issue or find any forums with a fix to similar issues. about to replace pads and anti rattle spring this weekend. any suggestions or help will be greatly appreciated before i start replacing everything