Changed all the brake pads


I have never seen the brake fluid line bolted out of the way for the front and back pads.  But I also only changed brakes on four different cars.


Front brakes seem worn on the edges.  Is this normal?


Rear brakes seem worn on the edges also.  Is this normal?  The rear brake were squealing.


It is also interesting how the rear brake slip in from the side or from the top.  The front brakes only slip in from the side.