Brake shops and such are always....ALWAYS going to tell you that the rotors are warped, the wheel cylinder are bad, the master cylinder something major is always wrong,,,,you think they are going to let you drive in for $50 in brake pads??? this is a do it yourself job that takes a total of 30 min. loosen lugs on one tire, lift that side remove tire, remove one bolt that allows the caliper to swing upward take out old pads, insert new swing down caliper, reinsert bolt, tighten bolt, put wheel on hand tighten lugs, lower side of truck, tighten lugs, repeat......... check for deep grooves in rotors when you are removing pads.