2002 Jeep Wrangler MM size of front brake rotors

Miss JoAnneH...See My Profile and other CJ 5 and CJ7 answers. I do not know your rig much at all (You should get a CJ, then I could really help you alot!) Regardless, down here (the Promised Land) There are about (wild guess) 10 or so auto parts chains. I have found that NAPA and one other are usually more expensive....But the have about all parts for most older + younger year models, to include agricultural and others....so thats a Plus for me! I have a '46 Willys (shrunk it into my Avatar) and a '77 CJ 5....+ I help alot of family with "Odd" stuff. As far as the '77 CJ 5 and wifes newer rig and family/ friends newer rigs.....we shop at one of the two: Autozone and Advance Auto They are usually neck to neck....with some slight variations. Generally we stick with Advance Auto.... They are closer I go there alot....... Sorta like your mailman....they know me pretty well and will go out of their way to assist me....or call around for a part, I might need ASAP.....sometimes they have been known to charge me as if I was a "Shop", instead of a "Walk-In" I went ahead and did a little "Research" this is my results I used ONLY Advance Auto Online for findings 2002 Wrangler comes in 4 flavors (at their site) SE--4 cylinder Sahara---6 Sport---6 X---6 Ruled out "SE"Your question said, "6 CYLINDER" For the other 3 (which I checked 1 at a time) They show 2 choices (2 hits!) FOR ROTORS (1 ea.)--says "they" will fit each one of the Wranglers, I plugged in Both are the same part numbers (from each MFGer, respectively)----for the 3 Wranglers SO.....I ASSUME ALL THREE HAVE THE SAME TYPE BRAKE SYSTEM 1ST IS "WAGNER" FOR JUST UNDER $85 2ND IS "WEAREVER" 78MM ((FRONT) FOR JUST UNDER $35......the only mention of "MM" I read the "Reviews" both were POSITIVE As for me...Unless I were having WARPAGE issues---I would do the lesser expensive! I also found that up there in "Yankee-Land" you have 10 Advance Auto Stores within 11 miles of Buffalo.... I will let you compare prices with others, these were online prices, I gathered for you.....I hope the "78MM" was helpful If Ya'll have a Cheaper Chain let me know I must now finish cleaning up....Traitor Step-son and wife (yankee-girl) along with Gran-younin (still has potential) expected in 3 hours......visiting from "Watertown, NY"...Go Figure? Remember, I get no pay here (hobby) Thought maybe I could assist you....You can donate for the harassment if you like!....Do the "Feedback Thing" if you wish. If you need further assistance or want to see some "REAL JEEP" pics----come back to this post anytime...I will be alerted of activity here...I will try to help all I can! Let me know ANYTHING!....I get few replies, fellow JEEP People! The Medic