Rep Power: 223

In the driver side rear well area i'm getting what sounds like a really short hiss/ rubbing sound. I removed the wheel today and inspected everything in the drum. Pads are still good, springs are all still there and nothing looks broken. nothing really as far as glazing, so i'm convinced it's not the drum. I'm just wondering if anybody has an idea of what might cause this hissing/rubbing sound. I only hear the sound up to about 20 mph and then I don't hear it anymore, probably due to road noise. It is within a second each time I hear it as well. I also checked in the wheel well for any rubbing and I don't see any signs of it on the tire or in the wheel well. I'm dropped on stock struts right now and do have the two in the front that are blown that i'll be replacing this weekend when I install my tokicos

 
Rep Power: 812

could be blown shocks in the rear. or maybe some object in the tire. or your shoes are touching the drum intermittently

 
Rep Power: 223

I'm changing out the shocks this weekend so if that's it i'm hoping it fixes the problem.

 
Rep Power: 812

i bet it will, blown shocks make weird sounds, sometimes like youre dragging a plastic bag when going over bumps. and sometimes air noises.

 
Rep Power: 223

aside from the shocks though is there anything else I should check? Anything like bearings or anything ?