I am having trouble with the rear brakes on 2004 Chrysler Town & Country

I have put new shoes,Drums, Spring kit, adjusters, and wheel bearing. and I am now expiriencing what it feels like is a brake snagging. The right side drum heats up so I think the prob is over there. With the vehicle jacked up it only snags on one side of the drum. What could cause this. I have changed the drums I got from the store 4 times. I think there getting sick of me at Autozone.

sounds like a drum is out of round. did you mach them?