what side are you running your diff nut on? I am running ceramics and have not noticed any issues. I put them in, tighened until the screw stopped and back it off an 8th. then held one wheel and went 1/4 throttle for about 30 seconds, then tighten it a hair and set the skipper. stayed tight all night. btw, I run the diff screw on the motor side. people say this helps.