I do not do my own brake work. I have a good mechanic and each jeep is checked at least once a year. Based upon several different jeep sites, I have purchased the replacement pads and rotors I want on my jeeps. I keep them on hand so the mechanic does not replace parts with what oreilly, autozone or NAPA has on hand that particular day. I also keep a written record of what is done. I do not trust my memory. I am impressed that my mechanic is impressed with the parts I provide him.