well i am not sure if they even changed the rears anything..i think the last time that was done was when my grandpa used to change his own breaks...
can i dismantle the drums and clean them or something??
could new drum(shoes or pads?) be the reason it is not shutting up?
sry i have so many questions
Yes, you can. I would first, take off the drum and see how your rear brake shoes look.
You will have to take off the wheels, then, take out the 4 center nuts (some trucks don't have these center nuts, so don't be too worried if you don't see them). Make sure your parking brake is off, and then bang on the drum once or twice with a hammer (rubber mallets or BFH's seem to work better but I've used a carpenters hammer before) It should come loose, and you should be able to pull it off.
Take a look at your shoes now, and also, take a look at how much dust might be back there. Some brake cleaner and a rag should do the trick.
If you have to replace the shoes, it's not that hard, you will just need to pay attention to what you take off, and then put it back on the same way with the new shoes. You might need a drum brake tool kit. (you can find them at most auto parts stores) Depends on how agile and handy you are.
You might also take a close look at your pads up front, as well as your new rotors. Maybe you caught a rock in between the pad and the rotor, and that is what is squeaking, or maybe it's the aftermath of a rock and now your shiny new rotor has a groove in it. (done this before ÂÂ
)
Hope this helps.
Heather