2002 Mercury Mountaineer brakes+rotor

Complete brake job with pads, rotors, labor "all four wheels" with "good quality" parts will cost you somewhere in the vicinity of $450.

The rotors are the "Major"cause of the big cost.

If you can have your rotors resurfaced and the rotor thickness is within acceptable limits after resurfacing the cost will be a "LOT" less.

Usually the rotors can be resurfaced. It is a very common procedure
Rotors that are "deeply" gouged or have heat cracks are the cause of needing new rotors.

Good Luck;
Rick