Appreciate your comments. 2003 Accent with 5k miles on it (still under warranty). Applying the bakes can cause a soft repeating thud sound from rear of the car. Dealer turned the drums at about 2k miles: stopped it briefly (Feb 2005). Dealer replaced the drums, shoes, and wheel bearings at about 3.5k miles: stopped it for awhile (Mar 2005). It is starting again. Any suggestions?