ceramic brake pads & warped rotors

|Anyone else experiencing reoccuring warped rotors after installing |ceramic brake pads? | |My father did complete brake job w/"P-Boys" ceramic pads on 2 |different trucks(Dodge Ram GMC Suburban)... first having the rotors |turned... subsequently replacing rotors and drums after both vehicles |developed pulsing pedal. | |After installing a second set of new rotors on the Dodge with no |improvement, the ceramic pads were swapped out for the "usual" semi |metalic on the GMC and the problem seems resolved on that vehicle. The |Ram is scheduled for semi metalics this weekend to see if it provides |the same solution. Currently with 2 weeks of service a runout gauge |indicates 2 to 4 thou of runout on the new rotors. (too much?) | |And yes he's aware of & goes thru the proper torquing sequence and |doesn't over tighten the lugs. | |We're under the opinion that the combination of a heavier vehicle with |the ceramic pads cannot dissipate the heat as effectively and as a |result...is repeatedly warping the rotors. | |Is this Murphy's Law or anybody having similar problems?

From what I've learned, it's a matter of using in inapropriate pad for your application. Ceramics typically address 2 issues: noise, and dust on wheels. On a HD application, those are secondary to actual stopping. For trucks to 1 ton, I've yet to find anything better than Raybestos Super Stop pads. Excellent feel, easy on rotors, acceptable life. Originally came out for commercial and towing applications. I also used them on a Pinto road race car, with great results :) Rex in Fort Worth