I have a 05 Ram 1500 QC and it has about 15000 miles on it, Recently I noticed that when I brake the front end shudders, Mostly when I apply the brakes lightly. Sometimes at low speeds it dosent do it but it is starting to drive me crazy. I also put some 20' wheels on it and am wondering if this might be something that might be causing it, The truck drives fine and the alignment seems good, I am starting to think that it might be a warped rotar cause I cant think of anything else it might be since the pads still look great, If so would it still be under warranty. Thanks

 

If it were the wheels, it would be doing it all the time. Sounds like a warped rotor.