ok, so my rear drums are squealing, they only do it about 50% of the time but it is getting annoying and along with other noises it makes my good looking truck sound like garbage, everything in the rear is new, 2 weeks ago it got new shoes, springs and even the drums are brand new and i cleaned them before installing, is there anyway to make them quiet?

oh yeah, the truck is a 1996 f150 4x4