SVTmarleymes

Hello all... I have a 2011 raptor and my rubber bushings on the rear shackles make a loud annoying squeaking noise durning the warm weather (rubber expanded) and doesn't do it in the winter (rubber contracted)... I know the problem but ford dealers are too dumb to listen to me and look into it. I have taken it to 2 different dealers and they both grease the leaf springs when I tell them to remove the bushings and replace.... They said this last time that they looked at info from other dealers to see if any other raptors were have the same issue. They say I'm the only one and of course when I take it Into them it stops. Being in Texas the weather is 30 one day and 70 the next then it starts again!!! It's annoying as ****!!!! Has any one had this problem or am I just going crazy??? Please help!!