How do you know where to put the squealer on the brake pads inside or out?

The squealer, or brake wear indicator, is typically placed on the inner brake pad. This is because the inner pad usually wears down faster due to its position and the design of the braking system. When the pad wears down to a certain level, the squealer makes contact with the rotor, producing a squealing sound to alert the driver that the pads need replacement. Always refer to the vehicle's service manual for specific installation guidelines.