What is wrong with my brakes? on 1999 Dodge Ram 2500

I recently put new pads and shoes on my ram 2500 and now every time Im slowing down once I hit about 25mph they start grabbing. I put the thicker shoes (primary) on the rear and set the adjustment properly when I was done. I know it takes a minute for the brakes to seat properly but its been 6 days and its still doing it. Whats wrong?

Asked by for the 1999 Dodge Ram 2500
DID YOY TURN THE ROTORS AND DRUMS?SOUNDS LIKE THE DRUMS ARE OUT OF ROUND
No.. I was thinking that's where I messed up too. Im thinking im just gonna get new drums what do you think?
WELL I THINK IF THEY HAVE ENOUGH MATERIAL ON THEM YOU WOULD BE WASTING MONEY.ANY AUTO PARTS WITH A BRAKE LATHE CAN MEASURE THEM AND SEE IF THEY CAN BE TURNED.