I recently bought a 2007 RT with 103,000 miles. I had all the fluids changed, timing belt, water pump, and tensioner replaced, valves adjusted, and replaced the oversize tires that were installed. I would still have a vibration going down the road. It turns out that I need to have the front axles replaced. There is a 2 inch lift kit installed on the truck. My guess is that this lift kit and the oversize wheels are what caused the axle problems. Will the lift kit by itself be enough to cause future axle failures or will the removal of the oversize tires help the new axles to not have problems? Thanks.