ok, now its warm and my 2000 rpm vibration I had all winter is gone. except when I go to work early in the morning and temps are in the 40's and low 50's. it has been in the 80's this week and my steering wheel and gas pedal clunk feel is back. I will feel this all summer with it being worse the hotter it is. I have been going thru this cycle since I bought my truck feb1 2014. dealer says it is the characteristic of the truck with the vibration and dealer replaced the intermediate steering shaft to fix the clunk, but their fix did nothing and now they say its the road I feel.