Truck has 45K miles, easy use with moderate towing. When I'm driving the truck I can feel something loose in the steering and the pedals too when going over bumps. I have a freespin kit so I'm sure my axle u joints are okay. I took it to a front end place and they said everything checked out okay in terms of ball joints or tie rods. I have the 08.5 steering. Track bar? Driver side sway bar end link is leaking grease, could that be it? Any help is appreciated.