(SQUEAKING)-

All about engine ;
If the brake liner are more Damaged, And ribet Is friction With drum.
and second reason. If the brake liner Rivet is loose And this rivet are friction with drum.

and brake liner adjustment isn't equel .
and the brake liner is hard much Or brake liner It happens slip with drum. 
 and brake baCking plate is loose .
If the brake drum's of thicknes Has decreases. Then 
if you forgot to Put radial  Spring on the brake drum.

This is all the reason why There is a voice in the brake.

thank You